After years of searching, I managed to find the drummer's mask on ebay so I scooped it up immediately. Fast forward a few weeks later and it finally arrived on my doorstep
White Rabbit Mascot Costume Adult Easter Bunny Jumpsuit | eBay
Alice nel Paese delle meraviglie | Partyshop.it
20 pz Costume Coniglio Fai Da Te Orecchie Coniglio Pasqua Artigianato Ciondolo Fai Da Te Calzino Ragazza | eBay