Here are 40 seeds with all 36 biomes required for the advancement "Adventure Time" including Mushroom Island, Mega Spruce Taiga and Ice Plains Spikes within a world border of 4096 blocks (-2048,-2048 to 2048,2048). Two of them even with a woodland mansion!

Thanks to the Amidst project and sZPeddy!

preview maps at imgur.com

V=Village, I=Igloo, D=Desert Temple, J=Jungle Temple, O=Ocean Monument, W=Witch Hut, S=Stronghold, M=Woodland Mansion

 -55414997194881801; 8V 4I 1D 4J 1O 2W 1S 1M ( -792/ -904); 0.43% Ice Plains Spikes; 22.05% Ocean; woodland mansion! 378209395352473212; 6V 8I 1D 2J 1O 2W 2S 0M ( 9592/ -4808); 0.21% Ice Plains Spikes; 24.32% Ocean; -491676171880828995; 9V 6I 3D 4J 1O 0W 2S 0M ( 9448/ -3512); 0.01% Ice Plains Spikes; 25.71% Ocean; crazy Savanna Plateau M spike y=193 near spawn -755319513842796464; 5V 0I 0D 3J 3O 3W 2S 0M (-21288/ 20968); 0.34% Ice Plains Spikes; 31.89% Ocean; -974517182536699962; 7V 1I 4D 1J 3O 2W 1S 0M (-11048/ 4408); 0.24% Ice Plains Spikes; 21.23% Ocean; 1299445876672779963; 13V 5I 7D 1J 7O 1W 1S 0M ( 20712/-18744); 0.78% Ice Plains Spikes; 43.40% Ocean; spawn in village with 3 diamonds 1416131600849806535; 5V 4I 0D 4J 7O 1W 3S 0M ( 10792/ -3576); 1.18% Ice Plains Spikes; 40.27% Ocean; -1486597308561310039; 7V 2I 5D 7J 1O 3W 1S 0M ( 5704/ 9272); 0.27% Ice Plains Spikes; 19.86% Ocean; 1669283483338956431; 5V 3I 1D 1J 10O 4W 1S 0M ( -3080/ -872); 0.24% Ice Plains Spikes; 53.42% Ocean; 1853607272398192960; 7V 6I 4D 2J 5O 2W 3S 0M ( -1704/ 8152); 0.46% Ice Plains Spikes; 32.69% Ocean; -2186106134841955739; 10V 8I 4D 3J 5O 0W 1S 0M ( 6920/ 152); 0.56% Ice Plains Spikes; 33.93% Ocean; 2220880635968255999; 4V 9I 3D 2J 2O 1W 2S 0M (-11192/ -2088); 0.71% Ice Plains Spikes; 19.83% Ocean; 2238482112631925194; 5V 1I 3D 0J 4O 0W 1S 0M ( 15624/ 16936); 0.45% Ice Plains Spikes; 53.79% Ocean; 3474750793791788497; 10V 3I 4D 1J 1O 4W 2S 0M ( -8344/ 10600); 0.20% Ice Plains Spikes; 12.95% Ocean; -3610886374948718390; 2V 4I 2D 1J 2O 1W 3S 0M ( 17256/ 5416); 0.14% Ice Plains Spikes; 37.21% Ocean; spawn on island without trees 3646770445914740399; 0V 3I 0D 6J 0O 4W 2S 0M ( 7912/ 10824); 0.20% Ice Plains Spikes; 36.89% Ocean; -3729218462379209020; 6V 3I 0D 6J 0O 4W 2S 0M ( -1992/ 2984); 0.43% Ice Plains Spikes; 43.63% Ocean; 3951106291677499945; 10V 2I 2D 3J 1O 2W 3S 1M ( 536/ -936); 0.17% Ice Plains Spikes; 26.08% Ocean; woodland mansion!, spawn on island without trees 4042240345965771856; 8V 2I 5D 4J 3O 3W 3S 0M ( 5960/ 6776); 0.27% Ice Plains Spikes; 20.26% Ocean; 4798544232576907347; 10V 3I 3D 1J 2O 1W 2S 0M (-16392/ 9320); 0.46% Ice Plains Spikes; 32.50% Ocean; -4942920632027724675; 1V 3I 0D 1J 6O 0W 3S 0M ( 21208/-24936); 0.14% Ice Plains Spikes; 52.63% Ocean; 4943560139257792518; 4V 3I 0D 5J 0O 2W 1S 0M ( 1768/ -6312); 0.31% Ice Plains Spikes; 11.18% Ocean; -5150484020392416516; 5V 4I 6D 2J 6O 0W 1S 0M (-13480/ 15656); 0.42% Ice Plains Spikes; 43.45% Ocean; -5402673605257231442; 9V 0I 1D 3J 4O 1W 3S 0M ( 3496/ -9640); 0.19% Ice Plains Spikes; 42.08% Ocean; 5841794849523091365; 4V 5I 4D 0J 2O 1W 2S 0M ( -4760/ 6872); 0.46% Ice Plains Spikes; 24.67% Ocean; -5870034195416519391; 5V 5I 1D 4J 3O 3W 0S 0M ( -7624/ 26184); 0.04% Ice Plains Spikes; 41.82% Ocean; unovergrown jungle temple near spawn 6462466405470433409; 7V 10I 1D 0J 0O 3W 3S 0M ( -1752/ 14648); 0.31% Ice Plains Spikes; 16.39% Ocean; 6519449351705508869; 3V 3I 2D 3J 4O 0W 1S 0M ( 6984/ -9896); 0.34% Ice Plains Spikes; 48.19% Ocean; -6838735121102853161; 6V 4I 0D 0J 2O 1W 2S 0M (-13288/ -5944); 0.30% Ice Plains Spikes; 23.83% Ocean; 7088896416840668197; 3V 1I 1D 4J 4O 3W 1S 0M ( 648/ -3432); 0.30% Ice Plains Spikes; 39.71% Ocean; 7618654116148779787; 5V 1I 0D 3J 0O 2W 2S 0M ( 9400/-16312); 0.45% Ice Plains Spikes; 21.31% Ocean; 7658306913263741137; 7V 2I 3D 3J 1O 1W 2S 0M ( 19784/-21224); 0.31% Ice Plains Spikes; 16.22% Ocean; 7697610728786725808; 7V 6I 3D 2J 5O 1W 2S 0M (-16568/ 11816); 0.22% Ice Plains Spikes; 31.17% Ocean; -7750830373751606528; 7V 3I 1D 3J 2O 1W 2S 0M ( 8184/ -3272); 0.02% Ice Plains Spikes; 29.41% Ocean; -8155751749042674775; 2V 3I 2D 2J 6O 4W 2S 0M ( 4088/ -9576); 0.02% Ice Plains Spikes; 36.29% Ocean; 8483303985309521748; 7V 3I 4D 3J 1O 2W 3S 0M ( -664/ -3320); 0.69% Ice Plains Spikes; 34.20% Ocean; -8559364381345418738; 3V 5I 0D 1J 4O 2W 2S 0M ( -4968/ -952); 0.40% Ice Plains Spikes; 40.03% Ocean; -8664817670574595963; 8V 5I 2D 1J 1O 2W 3S 0M ( -6264/ -3624); 0.53% Ice Plains Spikes; 19.05% Ocean; 9083251511796234041; 3V 3I 1D 2J 2O 2W 1S 0M (-18920/ 12184); 0.17% Ice Plains Spikes; 25.90% Ocean; 9190483883666827439; 2V 9I 0D 0J 3O 1W 3S 0M ( -9496/ -1160); 0.57% Ice Plains Spikes; 43.50% Ocean; 

The server is pay to win, has nazi mods, and costs real money to create a faction.

The topic for this week is Resource Packs, Custom Models, and Skins.

It's been over a year since we last discussed this, and there has been a lot of activity in this area. So let's hear all about the tools, techniques and resources for building custom models, resource packs, and skins. Post your questions, show off your creations, recommend the best guides and tutorials.

What is this?

Every week(-ish) a new thread will be posted and stickied by /u/AutoModerator. Topics will usually cover things that, if posted on their own, would receive little attention and clutter up /new. By bringing these threads together, we hope everybody has a better experience. We've come up with a few topics on our own, but we'd also like feedback from you. Are there any other topics you'd like to see added to the rotation?