[REQUEST] Anyone got a gmod steam key that I can have?

I was wondering if anyone was nice enough to give me a gmod steam key I want the steam key not only for my use but ima be sharing my steam account with my little cousin he wants gmod because his favorite youtuber vanossgaming has it and I would honestly want you to do this for him not me but if not its okay he will be fine without one but Thank you so much for atleast reading this!