I wasn't happy with the way the fins for this rocket fit into the fin/motor assembly so I added four short section of plastic to beef up the fins. I figured a slot with a bottom would be one more surface for glue to hold the fins in place. It's amazing what you can use for rockets those red plastic sticks are from crackers and cheese packs. 
just a tip I thought I'd pass on
BAR
John
just a tip I thought I'd pass on
BAR
John
