Selling the Grow a Garden - Disco Bee which can be obtained by hatching the Anti Bee Egg with a 0.25% chance.

Info: 

• Once every ~20 minutes, the Disco Bee will have a 12% chance to turn a nearby fruit Disco.
• It is the only pet that is able to give out the Disco Mutation currently, as it is not possible to get it through any other means outside of a Disco Event caused by an admin.