These are fan-made plushies, not officially licensed, but well-made and the selection includes many background characters. The toys may come with an Olyfactory hang tag, or an MLP one, or occasionally a Starswirl Academy (another fan project, but doesn’t seem to be connected to the plushies I have with their hang tag). They are around 11″ tall. (More pictures coming soon – they made a lot of characters!) These are available from various sellers on eBay; they may not be listed as Olyfactory, and you may find more just searching by character name.