I found a dollar!
I put the dollar in my wallet.
What can I buy with a dollar?
I can buy a bell or a ball with a dollar.
I can buy ribbon with a dollar. 
I can buy a marshmallow with a dollar.
Maybe I'll buy a balloon with my dollar.
I'll buy a yellow balloon with a dollar!
 
I need more than a dollar to buy other things.
I need more than a dollar to buy a pillow, roller skates, a doll, or a drill.
I can not get a pillow, roller skates, a doll, or a drill with a dollar.