All the wood was really cheap, bought the left over sheets of plywood that home depot put on sale but is still perfectly fine. Made the playpen frame with pvc piping and had cut to frame size needed. 1 roll of fence which was like $10(did this 8 months ago), and the 8 bucks for the 4 1/2 foot...
also try going to the park and getting some decent size twigs/small tree branches, and would leave some around our bunnies home for them to find and also would fill a toilet paper roll with hay and sticking enough twigs on each end for the the hay to stay put.
made a 2 wooden mazes, bigger one has a dig box in it which my gf filled with some crunch paper they love to dig and toss around. and I purchased a big tunnel which they love to run thru and nap in. and of coarse those hay balls that have a bell inside. ours also seem to really enjoy having a...
the smaller of the two wooden boxes are actually mazes which I cut out circles and find there way thru which they did really quick. The 2nd box maze I cut out the circles at a higher height because I wanted to make sure they were exercising. for 8 bucks I purchased the long tube which they love...