Glad you like the story! In order to do drops, you need to deposit RAM to the atomicdrops contract, which can be done by sending WAX to atomicdropsx with memo "deposit_collection_ram:collectionname" (each claim of a drop costs 151 bytes of RAM). Here's a tutorial on how to create a drop: https://saycubed.medium.com/making-an-atomic-assets-drop-827a300ca3e3

And here's a more detailed guide to NFTs on WAX: https://eos-amsterdam.medium.com/non-fungible-tokens-nfts-on-wax-2817bbdee489