Tortola plank (Balsa, tissued and dope) on frame, the keel and bulkheads from 10mm plywood. it has a small electric motor fitted but will have sails as well. Curlew from the Eezibuilt range. Material ply wood, Some of it from fruit crates.
The stand for Tortola made from 3 ply cardboard to my own design, stuck together with PVA glue.