So, like, I guess I'm steampunk now? Since I think these little functional (meaning they're miniature but they actually work!) fin de siècle charm necklaces would be quite cute layered with a few chains? I kinda like brass mixed with slightly tarnished gold. Strappy monocle goggles optional!
Tiny hourglass, for keeping track of tiny intervals of time!
Tiny compass for when you're lost in tiny places.
Okay, these most miniature of mini binoculars probably don't work, but if they did, you could use them to see tiny little things!