Cost: Over $756,000 for both
Date: December 2009, December 2010

Diddy got slack for gifting his son, Justin Dior Combs, a $360,000 Maybach for his Sweet Sixteen. Of course, the lavish NYC celebrations were all featured on MTV's My Super Sweet 16. The next year, Justin was given yet another Maybach for his 17th birthday (and for making the honor roll!), but this time, it was a limousine. 

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