Make a Huge 40ft+ Marble Run!!!
Every year our church, The River Church Community in San Jose CA does a big Maker Camp ( http://ift.tt/2i6k2fc -- if you're around San Jose sign up your kids!!). I wanted a huge interactive display when kids walked in. So we made "Mt. Make" into a massive 12 foot high, 40 foot long marble ru...By: brettbymaster
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