Bargain!

Found two silver metal wine-glass type cups in a local charity shop for £2: the latest addition to my children's play "Mass kit". Currently a kagoul inside its pouch on a string is substituting for a thurible: does anyone have a good suggestion for a cheap-and-cheerful thurible-alike that would be an improvement on what we already have? At least my wedding present linen napkins have found a noble use at last.