When the wife goes to her favorite toy store " A.C.Moore" (craft store) I naturally tag along. Hey you never know whats hidding there that can be used in your train modules. Lookey lookey what I found. In the bead section were these spacers, darn if they did not look like little "N" scale barrels or beer kegs. Being the frugal type, I slipped the $2.58 pack into the misses carriage. Unpacking at home she asked where they came from? Huh - oh, - I came clean and told her I put them in her stuff.