If you're not into following Paranorman's plans then just “eyeball” it as best you can. Cut out a board that's smaller than what his plans call for - kid size would roughly be about 10“ wide by 18”long…
whatever looks good to you. Once that's done, print out some pictures of what others have done here on the site(I recommend following Volguss'pack, he's got some great profile shots)and find items around the house that look like the components in the pictures: Pringles cannisters, square International Foods coffee tins, various lids and canisters, a small round cake pan. Whatever you think looks good. Attach all the “stuff” to the board using whatever methods you have access to and just have fun with it. Don't be shy about asking questions as you go. We all learn from each other!
Good luck!