Here you go, Amazon 3-Variety Pack Boom Boom Site
For them I bought the Amazon 3-pack since I wanted to try them all out and I had prime, but if you pay on the original site you can get a free one but you have to pay shipping and they have a lot of 20% off if you sign up for their email list. Also forewarning, they are a lot stronger then Vicks so be careful when you stick them up your nose because they're a lot more than you'd expect.
I like them a lot more then Vicks but they are definitely on the pricier side of things.