I have made this wall hanging without thinking about how to keep the points where they should be. It should hang exactly like it is.

Is there a way to do this? Any ideas would help! Thanks

I don't see why you couldn't put a hanging sleeve right across the back to make it hang where you want it. I might even then look into making sleeves down the sides to hold them rigid.

Mount it onto flat wood strips going up the outside edges to the peak.

I made the Star Spin pattern for a wall hanging; it's not squared off, it's a star. I got some cardboard and cut it the shape of the the top half of the star and sewed little pockets on the points. The wallhanging rests on the cardboard which is then held on the wall by two small screws. (Does this make sense? It really works; hangs nice and flat with sharp points.)

Maybe foam core craft board and temporary glue?

Sticky Tac!! Love that sticky stuff as it doesn't do damage to the walls but keeps pictures from moving when the kiddo slams the doors as he hasn't learned yet that the door does shut without a forceful push.

Two sleeves and flat wood strips, it will hang beautifully :D:D:D

If it's not too big, you could cut a wire hanger in the middle bottom and straighten out the two ends so it makes a wide, open hanger. A few tabs with velcro fasteners will hold it on the hanger.