The "cool parents" award goes to this mom and dad who constructed a home made roller coaster for their three year old.

The coaster is 12 feet high and built of PVC and concrete.  The couple took three weeks and $700 to build it in 2009.  The video was just uploaded to YouTube in February and has since gone viral.

The coaster is still standing but the couple says they plan to dismantle it in order to sell their home.

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