Been a long time since I really worked on TCs and I'm not that familiar with the item options anymore.

I am primarily look for "modern" everyday use items at the moment since the pets I'm working on exist in a modern/near-future world. The color scheme is a bit neon 1980s so the items don't really need to be standard black and white.

That said, I've also got some steampunk/post-apocalyptic themed pets which could also use tech items. I wouldn't mind getting suggestions to them even though I'm not actively working on their TCs at the moment.

You might also want to check out the Atebus Shop for other ideas.

A few years ago there was a monthly collection that was sci fi themed, full of good stuff.