How to hang this perler bead project?

Sono
The End wasn't The End - Found a new home after the great exodus of 2012

So I’ve been pulling my hair out on how to hand this thing. I don’t think I have any of the materials necessary. I had someone make some perler pixel art for me, the one I’m trying to hang is the Mega Banette:  
full
 
It’s roughly 16x16 inches. It came out nice, but a couple problems, the neck is a bit wobbly, I can’t have it bend forward when its standing up, else it might snap off after some time, tried using silicon glue to secure it a bit better. I tried using some foam board and 4 thumbtacks. The thumbtacks aren’t long enough to pin into the holes of the beads, and attempting to put the thumbtacks straight into the board and placing the art on it, because of the irregular design, makes it lop sided and the thumbtack for keeping the head secure wont keep it in place. So after wasting an hour trying that, I tossed the board and now I need to figure something else out.
 
So how would I hang this thing up securely? I figured a 18x18 frame could work, but I dunno anything about frames for crafts, a regular frame would just have it sit semi lop sided and slide everywhere in the frame. Not to mention frames are not cheap.
 
I don’t have enough space to keep it on a desk, so it’s either hang it up or put it in storage, which would be a waste.
 
Edit: Nevermind, I figured something out, can’t hang it, but found a decent sized bulletin board and just propping that up against a wall.
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