Yeah, I know what you mean about powder vs. stickier snow. Definitely more you can do with sticky snow. I still had a ton of fun in powder when I was a kid though. Just running through deep snow, making deeper piles if the snow wasn't that deep and flinging myself at them, making snow angels, playing with my dog (has Diamond been out? what's he think about the snow?), etc.
Just thought of one game that can be played in powder (needs to be at least two people though) -- can't think of the name of it but it's a kind of tag. You make one big circle (one circuit is fine, it doesn't have to be that deep at first, just so you can tell where it is) and then bisect it once or twice. (Think peace sign.) Then you play tag, but you have to stick to the pathways. Bigger is better (25-foot diameter, say, if you have room). You and Mo and Mr. B would be most fun, but fun with only two, too.
Most important thing from a batshit perspective -- running around and expending some serious energy.
Great that you have some gear!