Ideas for Patreon Pin Club Stickers: I need em! (Patreon)

I'm hanging out at my in-laws this week so I don't have access to my usual drawing tools, but i'm trying to brainstorm up some sticker ideas for the Pin Club so I can send everything out when I get back home! Do you have any ideas of what you'd like to see? My ideas right now are:

-Hellmouth sticker

-Underground Pub sign/logo (the one with Tim's skull)

Anything else you'd like to see? Something seasonal? I'm all ears for ideas!