The crypto environment has become a rich and dynamic financial ecosystem, providing new methods to disburse tokens and mobilize communities. Of these tools, airdrops have become one of the most favored marketing and adoption vehicles. By giving away tokens for free to current or would-be users, projects can drive attention, encourage usage, and induce network effects. But although the idea of an airdrop is easily understandable, the regulatory landscape under it is less so. Various regimes understand and govern such distributions differently, creating issues around legality, taxation, classification as securities, and compliance approaches.