Bottomless Hippopotamus is the store on which PDR sells various digital items including the colouring and activity books “The Many Monsters of Mackestry Manor”.

A sort of extension of that store can be found at Itch.io on which PDR focuses more on content for RPGs.

And, though it is in the early days at the moment, I’m also trying to build up a Patreon to help fund all this stuff.