Lost Frost plugs

Where are you finding freeze plug kits for $15?

I looked everywhere for months including ebay and rockauto. $22 or $18 and shipping.

I have indeed had freezing water push out a plug before as well.

If anyone has a solution for the ones behind the motor mounts, I'm all ears (ha).
I'm currently building a press that bolts to the motor mount ears, so you don't have to pull the engine.