Great news! GE released the Sonic Slipper!
In 2017, the GE Sonic Shoe Slipper was released for sale in the US at Hot Topic Stores
....and they look great. Each slipper is 'plush' so it stays shaped properly. The 'sock' has a velcro in the back (bottom right) so you can easily fit your foot in. The buckle is plush/fabric as well. The bottoms are just black, but they have those little rubber 'dots' to give it traction on any floor type. The back/heel of the shoe sole has that oval printed on (Shoe texture? It's in the art, so it makes sense here)
Another great feature is that they'll likely fit ANYone, these aren't some annoying 'kiddie' item, it fets Mens 3-9 and Womens 5-11. Even if you don't plan on wearing them, just having a big life size pair of Sonic shoes to collect or display is fantastic.
How does GE's Sonic Shoe Slipper compare to the previously released Drop-Dead pair? Quite favorably!
Notice how the GE 'sock' has the line in the center of it to imitate the fold in Sonic's sock, while the Drop Dead one lacks it. The GE buckle is also a more 'cartoony' presentation than the smaller plastic one DD used. The bottoms, while differently colored are about the same. The DD tag though has (probably) Picky the Pig little animal on it as a hidden detail.
If you like Sonic's shoes...you'll like either pair. The GE ones will be much less expensive for USA fans, however (DropDead is a UK company who ships overseas, but that does add to the cost). They may also fit more feet because of the velcro 'sock' modification. It can fit up to size 9.5 foot (or maybe a bit larger) These are thick with stuffing and make wrinkly noises when walking.
Going in-depth with loads of photos and reviews to let you choose the shoes!
Uh oh, it's 2016, are these fabeled "Sonic Shoe Plush Slippers" ACTUALLY going to be released? They appeared years ago as a 'europe item', now the USA is getting factory photos for these fan-must-have accessories. They're still looking just as good with stuffed buckles, actual sewn on (not just colored fabric) shoe stripe & sculpted sock. Since it's actually a replica of Sonic's shoes at (probably) life size, of course most fans want them whether to wear or as a display item. Entry will be updated if/when the shoe slippers are actually found by any fan in any store.