Build a flat bottom jon boat plans . these plans are to build a flat bottom fishing jon boat. fisherman who like to work the shallow backwaters and weed. The aquacraft little river boat is the best flat bottom small pontoon boat ever. it is compact stable and safe. it is unique and exceptionally light. aquacraft home. See more of the jolly boat rocker in the builder’s gallery. jolly boat is a rocking toy boat designed to provide years of make-believe nautical adventure for the.