Australia

If you know someone who does some sort of hobby that requires consumables, find out what that consumable is and buy them some of that. Paint for a painter, wool for a knitter, etc. But only if you can find out the specific type of it they prefer/need. The wrong colour or type of paint is very unlikely to be appreciated, but something that's a little more expensive than they'd normally buy themselves, but still within the style they'd like is great, if you know what that is. A voucher to a store that's specific to their hobby is a good compromise if you don't know and aren't able to find out more specifics.

Loosely related, running shirts or cycling jerseys are good for people who run or ride. Not quite consumables, but things they probably own and/or need to own a few of, that can help express themselves within the hobby and probably don't need to be in a really specific style. The fact that they're likely to own multiple of them makes them more appropriate as a gift, IMO, because it's less of a "commitment". Whereas a running watch is probably something they only need one of, so even if it was priced in the appropriate range it wouldn't work—they've already got the one and only one they need.