Happy Bauer can produce either 33,000 corncob pipes or 17,000 cornhusk dolls per year. Pipes cost $3.50 to make and sell for $8.50 each, giving a contribution margin of $5 per pipe. Dolls cost $4.50 to make and sell for $11 each, giving a contribution margin of $6.50 per doll. The document calculates the total contribution margin for each product based on the contribution margin per unit and maximum annual production.