To my delight, I found the today. To my dismay I then realized I had no idea how to apply a footwear opposite it short of finding individual shoes or boots. If any of y'all would happen to have a few suggestions, I would be greatly appreciative.

The first post here: Wearable single shoe, left and right contains a list of single foot items.

Since that time they've added these shoes and socks as single items (they come in various colors): [item=Single Pink Sheeta Sneaka (Left)] [item=Single Blue Sheeta Sneaka (Right)]