Not a vacation, but an idea:
A craft forum I'm a member of has an annual Moddy Christmas and here's how it works: (For clarity,I'll use BYC as an example)
BYC would put a link to Amazon on the site and ask the members if they were planning to purchase Christmas gifts from Amazon, would they please use the link posted on BYC to access Amazon? Amazon would then donate back to BYC a percentage of the purchase made through their referral. The mods then split this money among themselves (it might be in the form of gift cards).
That's what my other site does to try to give something back to the mods that work for them. I know I bought quite a bit of gifts from Amazon this year and I would've loved for BYC to have gotten a "finder's fee" for that.