need some old hollow core doors! - $1 (Concord)

I'm looking for some hollow core doors to build a puppet theater for my kids, and while I know I can.
pick some up easily enough at HD, I figure I'd look to see if anyone out there has some lying around that they'd like to be rid of.
Looking for slab door hollow cores, no panels or semi-solids.
Maybe you just remodeled and have a stack I can save you the dump fees on? Drop a line to let me know what you've got and let's work something out!