(string-append
"http://www.officedepot.com/"
"a/products/495242/Scotch-Permanent-Double-Sided-Foam-Tape/"))
- (item "#4-40 Phillips 1/2 inch flat-head screws"
+ (item "#4-40 Phillips 1 1/4 inch flat-head screws"
3 .1 1 "home depot, lowes")
(item "#4-40 hex nuts"
6 .1 1 "home depot, lowes")