Just as a caution to your friend with the (ceiling?) fans you have made the pulls for.... the plastic switches now use in most fans are not very sturdy and extra weight/strenuous pulling with break the switches (circled in this picture). I take apart ceiling fans with alarming regularity at our local Restore (we have WAAAAY too many to sell used and a lot of new ones on the floor to sell). we pull the copper windings out to sell the copper.
Those are really nice looking and I hope they like them.