The kids have started to seriously look through the wife and I's vinyl collection, and have been getting way more interested in learning to play themselves. I had the wife keep an eye on them in the past week to figure out their instrument preferences, and we think we've got them pinned.
So our eldest daughter cannot get enough of my wife's Primus albums, and seems down with the groove in general, so we're getting her a bass guitar.
Our middle son was always a no brainer, the kid's been a pots and pans banger since he could crawl, and mostly listens to Zep and Rush, so he's getting a drum kit.
The youngest daughter was an out of left-field surprise, we figured based on the other two, she would want a guitar. Turns out she found my old Jethro albums, and wants to sing and play flute like Ian, so she's getting a PA and beginner's flute. I'll admit to being biased, but seeing a 5 year old hellhound belt out Bungle in the Jungle is fucking adorable.