Gift ideas for songwriter recording first album?

My partner has just started recording and with Christmas coming up, i’d like to show my support with a related gift. They are doing everything themselves and since it’s a pretty bare bones operation (recording setup is couple of pieces of board with sound foam and a mic in our tiny studio) there must be some way I can contribute. My budget is about $200.

The only thing I know they really need are better headphones for mixing, but with my budget not sure if I can afford a pair that much better than the ones they’re currently using for tracking (but would love recommendations if you have them - i looked into the AKG K712 and would love to get them if I could afford them).

I’m not sure what other info would be relevant here. I don’t know anything about this adventure they’re embarking on so thanks in advance for your guidance.