This page is for plans where the designer has specifically mentioned it as being a tender. 5. 5 backpacker; paul butler; backpack boat; ply. Free rowing boat plans for the backyard home builder, build your own rowing boat, dory, folding dinghy or pram using these simple plywood designs.. See more of the baby tender in the builder’s gallery. the cradle boat baby tender is an adaptation of the classic yacht tender carried aboard many of the finest.