This mug is one is a series of Alice In Wonderland inspired coconut shaped mugs with a flowered tapa-style colored band around the top and a driftwood shaped plaque on front reading "Drink Me".
From Lost Temple Traders:
"One drink from these mad tiki cups will send you down a rabbit hole filled with tropical flavors and colorful characters.
This 2-mug set includes both the pink and blue mug. Limited to 250 sets and produced by Munktiki Imports, these mugs are ready and will ship over the next 1-4 weeks. "