The tag alias #63602 playboy_bunny -> bunny_costume is pending approval.
Reason: To quote from the bunny_costume wiki:
A bunny costume is an outfit originally popularized by the female staff in Playboy clubs ("Playboy Bunnies")
It then goes into a detailed description of all the required components of the outfit.
playboy_bunny, meanwhile, has no wiki, no aliases, no implications, and a sixth as many posts. The results of playboy_bunny -bunny_costume appear to exactly meet the requirements explained in the latter tag's wiki, right down to the bow tie.
These are the same tag, with playboy_bunny being used only by people who don't know that bunny_costume exists. Source: me, just now.