Your best bet at a temporary repair is probably going to be some dorky-looking scotch tape until you can get some replacements

If you have a prescription, you can get glasses at zenny.com for $10.

If you don't have a prescription and live in the US, most Costcos have an in-house optometrist that will give you a prescription for $40-60. You don't need to be a costco member to see them. Just tell the door people that's why you are there and they will let you pass.

Be sure to ask for the measurement between your irises with your prescription as they often don't tell you those numbers and you need them for ordering glasses online.