Here’s what “How I Met Your Mother” actor Neil Patrick Harris gave to his partner, David Burtka, this Christmas (with a little help from little Gideon and Harper):

My main gift to David. Called a Mechanical Flipbook. Fun to create, even funnerer to watch!

A video posted by Neil Patrick Harris (@nph) on

We want one!

We’re not sure if Neil did this all on his own, but there’s a company called FlipBooKit sells kits so you can make your own mechanical flip-book.