Coworkers Thank yous

Hello!

Right before I went out on vacation for my wedding my bosses and coworkers gave me a card with money from them all. I work for a small company with only 7 of us total. My married bosses bought lunch and gave $100, while 2 older men gave $50 each. My 2 younger coworkers gave $25 each. This post isn't about the money, I was surprised to get anything from any of them honestly. I am trying to figure out what to write in the thank you cards for each of them. I am not particularly close to any of them, and none of them were invited to our minimony and they aren't invited to our large celebration next year. Anyone have any good tips or suggestions to write in their cards?

Thank you!