Hi capecodder

I'm not sure were you are from but the best place to get salt and pepper stoppers is your local hardware store like Home Hardware(Canadian company). They are not very expensive either. You can also try second-hand or thrift stores. Just buy several of the ugliest sets that you don't want keep, take out the stoppers and throw out the shakers. You can also use the unwanted shakers in with your indoor plants as decorations. That is what my grandmother use to do.

Try the Dollar Stores to buy S&P's to get the stoppers out of.
Kathy G in MI

The stoppers I know are cork....and I believe you can still buy corks...

Here is a link that might be useful: cork stoppers

Craft stores sell corks: look in the Kid's crafts section