I’ve never seen the plain root beer pops, but was once addicted to Schwann’s root beer float pops as described above by Big_g.

http://www.schwanns.com to see if they’re in your area. (They’re a home delivery service with some okay-to-decent items, but don’t be fooled, the only "real" reason to get the service is the popsicles and their really wonderful eggnog ice cream around Christmas.)