They look like salt-and-pepper shakers. If that's the case, you should easily add to your collection by seeking out collectors and collector sites for them. I used to collect salt-and-pepper shakers and had quite an extensive collection before I either sold or gave them away.
Check out places like eBay for novelty sets. It should take you no time to add to your collection. Yard and estate sales are also good sources. Thrift stores and consignment stores often have them, as well.
Have fun. You will probably be surprised at the variety you will be able to choose from. Let your imagination soar.