sheet plastic for folding table

I am making these patented small-portable-folding-tables in wood and wish to make them in plastic. I am looking for a reasonably priced plastic suitable for this application. One that is stiff and relatively light weight, can hold up in the sun, preferably translucent and colorful in 6mm - 48x96inch sheets. I get three tables per 4x8ft sheet and I need to make hundreds. The black-foamed-PVC-table shown below curled up in the sun…

I am interested in costs for cut parts from my CAD drawings as well.

Please send samples!

Many thanks for any help!

Dean Robinson
Product Design Development
6 Pawtucket Ave.
Bristol, RI 02809
phone/fax 401-253-7313