~Disclaimer: I am not liable for any and all incidental purchases of strange incredibly niche gadgets you find on the Lee Valley website. I take no responsibility for you buying a hand crank Apple peeler or a miniature steam engine kit.~
Now that I'm looking around more, a box of rags might be a doable option. Not the Leevalley ones, but others I've seen appear to be much cheaper than the boxes of rags I've purchased in the past.
I try to use old shirts as rags (ones that are too damaged to donate), but sometimes buying a 20lb box of already cut up old shirts is the way to go. LOL