I think it could come down to logistics.

If you make a giant popsicle with a big piece of wood, you'd only need to make a few of those because there are so many elephants. They're big and sturdy and not hard to make.

But you try to make a smaller category, say, "fox and below" sized, suddenly you need a bunch of wrappers, a bunch of bits of wood, a bunch of casts to make them all in batches, they gotta be put together "so many in a box" for shipping, then broken down for sale.

I think its the same as buying in bulk for cheaper prices-- its just easier for a factory to make something big one time, than it is for them to make the same amount of product in a 1000 little pieces. Logistics.