We made Christmas star trees yesterday with our kids ... [link removed for privacy reasons. PM me if you want the link ]

I made the dough but the kids cut out the stars and I put royal icing into a small sauce bottle for them each and they 'glued' them together. My advice would be - don't aim for anything too big as it was performing great feats of gravity defience by the end just to stay upright. They make great gifts when they are done for other people.