Fuse bead brands include Perler, Hama, Nabbi, and Pyssla, though I'm just going to be using Perler brand colors in descriptions below.
My daughter started using Perler beads in her Montessori days, about 7 years ago. She basically stuck to the patterns that came with various bead kits, or just filled in every spot of shaped peg boards to her liking. The older you get the more elaborate pieces you can create. They aren't just for little kids!
I've seen some amazing MLP FiM creations with Perler beads. Magnets, wall decorations, coasters, keychains, bracelets, necklaces, headbands, barrettes and even business card holders. People are creating faces, profiles, whole bodies, and cutie marks with their beads. Some are crazy good!
I was looking through Pinterest and found some necklaces by a now defunct etsy store and decided to make new Perler bead patterns like those to share with you here. These are the faces of the 'mane six' ponies, looking head on. I don't have a Perler bead pattern generator, I just made these in PhotoShop. Hope you like them. :)
I'll also link you to some of my favorite MLP FiM fuse bead creations online.