input question: What do you use to make rocket powered Matchbox cars?

output answer: You will need an Estes A10-PT model rocket engine and something to tie the engine to the Matchbox car, and of course a matchbox car.

input question: To nail boards to the top of a wood project, you can

output answer: Use a hammer

input question: To use a coupon at the grocery store

output answer:
Bring coupon to the store, find the product that matches the coupon exactly. When purchasing the product give the coupon to the cashier to use before exchanging money.