I'll buy that for a dollar - A way of saying 'I'll take that and still have cash left to

A way of saying 'I'll take that and still have cash left to buy you a curse.'

I'll buy that for a dollar and still have enough to throw at your face.

That idea? I'll buy that for a dollar and still have room for my coffee and my insult.

I'll buy that for a dollar and still have enough to laugh at your nonsense.