New Tools or Underwear?

Hell I can't even buy clothes at "normal" stores for my boy. Just turned 16 last week HE'S 6'8" and 300 LBS!!! Wears size 18 shoes!!! Even t-shirts cost $30 if you want them long enough to cover his butt crack!!! We get asked all the "What the hell are you feeding that kid?" Our reply is MIRACLE GROW!! LOL