I'd take the kid shopping and buy him whatever he needs.
The amounts awarded for child support usually far exceed the costs of caring for the child. That "over and above" money is the problem. It rewards women in a totally unfair way. The extra dough isn't spent on the kid. It's spent on the woman.
The average cost of raising a child from birth to age 18 is 261,512 x 2 (I had 2 children)=523,024. My ex paid 90 a week for 16 years=74,880 and 56 per week for 3 years= 8,736 his total support 86,528 if you take 523,024-86,528= 436,496 not covered by support. My income 35,000 a year max = 630,000 for 18 years. Ex’s income 150,000 per year for 18 years= 2,700,000. So out of that he paid 86,528 for the support of our children which left him 2,613,472. The 436,496 left on the cost of raising our children came out of my 630,000...which means I’ve had 193,504 in 18 years that wasn’t attributed to raising our children. His cost 86,528 vs mine 436,496...if that means I was unfairly rewarded then I really suck at math. The reward I did receive...the unconditional love and respect of my children for my hard work and sacrifices.