Home Depot sounds like a good idea. Anyone, male or female, can use it. Even if you don't do repairs or much stuff around the house they still have lightbulbs, cleaning supplies, garden stuff, etc. I don't know anyone who couldn't spend $10 there in about 5 minutes! 
My MIL sometimes gives us home depot GCs instead of cash (the usual gift). It's appreciated!

My MIL sometimes gives us home depot GCs instead of cash (the usual gift). It's appreciated!
And they all go to Vegas together every year.
have a look over on the home-made T-shirts thread - one of the designers has done some great Mickey/Harley designs which you could iron onto T-shirts for everyone (I saw one person got 5 t-Shirts for $10
)