Hey Neil,
Had a few bits of spare thick plywood and some old spare cut offs of decking, so out came the jigsaw and made a few (one for starters) of those kicker jumps I've been going on about... Just have to get some thin ply to cover them with and jobs a good'un!
Be good to see how it works when covered in carpet!
Then I can (if wanted) make a few more different ones with whats left of the cut offs!