The Barnes & Noble LEGO Frozen 2 Build Event was over the weekend and some kind AFOLs have shared the instructions for those who were not able to attend.
As you can see, the build is quite simple and you should be able to find parts needed (especially if you bought any Frozen II sets recently) from your stash.
Here is the parts list for easier reference. The image colour sync is a bit wonky but the 1×1 cone and cheese slope are sand green.
(Images by Matt Graubner & Erin Purvis)