you can order dj tools chroma caps(?) i think thats what they’re called, from cremacaffe but i don’t know if that’s the best price on them, I just know they are EU and sell them. if you google cremacafe elektron skins you can find them.
shipping on knobs should be cheap from wherever though. what colors or style are you looking for?
what gear are you planning on installing them on
dj tech tools chroma caps - photo borrowed from the associated thread: