Cryptocurrency airdrops are emerging into one of the main trends within the sphere of developing blockchain projects. It entails awarding many wallet addresses with a free cryptocurrency token in return for some easy tasks like subscribing to a newsletter, or liking the social media pages. Airdrops serve the purpose of building awareness for a project, acquiring users, and distribute tokens ensuring the prevention of centralization. Some examples are the stellar lumens (XLM), which through airdrops increase its popularity and Uniswap (UNI) with a similar action during the last year. Nevertheless, participants ought to be careful and note that not all airdrops being promoted online are genuine, and therefore, they should engage genuine and reputable airdrops only. Airdrops are considered to be one of the most effective ways to get free tokens and be involved in perspective projects.