These are some ideas for a Snorlax crest, which I think thematically fits. All of them together are OP, so please choose only a few :3
 
	 
 
	Gives Snorlax the ability comatose.
 
	- This lets it spam facade, as well as avoid status moves. I think someone else suggested it as well.
 
	 
 
	If sleep talk chooses rest, then the HP goes back to full.
 
	- Might be too op. Throwback to gen 2.
 
	 
 
	Gives Snorlax the effect of the ability harvest.
 
	- GMax Replenish 
 
	 
 
	Moves that seem like it would hit harder with users weight gets powered up.
 
	- eg Body Slam, Heavy Slam, Bulldoze, EQ, High Horsepower, Stomping Tantrum, Steel Roller, Take Down etc
 
	 
 
	All physical moves have a chance to paralyze the opponent
 
	- EVERYTHING is body slam
 
	 
 
	Defense Curl increses defense by 2 stages.
 
	 
 
	Gives some buff to belly drum
 
	- Takes only 1/4 HP, works like Z-belly drum, gives an omniboost etc.
 
	 
 
	 
 
	[If anyone else wants to add to the list, please feel free to copy-paste.]