@alxd I have bought things from Ukraine through Etsy, but also through the shop.brave.ua platform. That is no longer in operation but links to sellers directly now. It may be worth a look what type of payment methods those sellers use. Another path might be an Estonian e-company, so that most your payments run through an EU account, and you only figure out the payment from there into Ukraine.
@ton @alxd PBACC is on Etsy now too it seems (previously their own site): https://www.etsy.com/listing/1233530362/plastic-bottle-cutter-pbacc