In what looks like one of the most awesome DIY projects we have ever seen, this dad decided to save a few bucks on the trip to Six Flags and built his kids a roller-coaster right in their own backyard. The roller-coaster was designed entirely out of PVC pipes, some pressure treated lumber, and concrete and features a 12 foot drop. Watch the video above to see the father pushing his kid up the homemade rig, winning mad cool dad points, and maybe attracting the attention of child protective services. 

[via YouTube]