They are considered hazmat/incendiary devices in VA and I don't think you'll find them anywhere on the shelves. I stock up whenever I go to my hometown in Georgia. Even then I have buy them at an Ace Hardware store -- a mom & pop place - the chain stores don't carry them there.

If you're close to the NC border. maybe you could check there.

You can also buy them on eBay sometimes.

HTH!