Plumber's Putty

Being his usual resourceful self, BF installed our new kitchen faucet after the countertops were installed. 

While doing random chores around the house, I came across BF playing with what I thought was Play Doh or Silly Putty. 

Apparently he wasn't playing with one of my favorite childhood toys, he was using the Plumber's Putty to line the kitchen sink drain. 

Whatever, it looked like fun, but I still received a big eye-roll.