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Here is the material cost:

one - Milk Crate ??
one - 1 1/2 inch x 10 feet PVC pipe $4.29
four -90 degree elbow $0.56 each
four -T-connector $1.29 each
one - 1/2 inch aluminum bar $3.98
two - washer $0.09
two - Cotter pin $0.56
two - 13 1/2 inch plastic wheel $4.00 (or 12 inch with bearing $9.95 each)
one - Strap ??

Total US $24.97 (Aug 2007)

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