Replying to Unique jib/jump features

My buddy is applying for a job as a park design/builder. However, hasnt many online photoshop/acad skills. So i asked him if he could use a hand to create some on the computer. None the less, i think he needs some drawings to hand in, im not sure. But i have nothing to do so i could careless if he needs some or not, ill draw some up. What do YOU think is a UNIQUE design this man (who remains confidential, how ever very active on this site) should submit to create a stezz-o-iffic park?