Weddingbee boards

I do not want a traditional gift registry since we already have our home. I want a honeymoon registry instead. I would love to give my guest the options of giving us different excursions. I do not have any idea on starting this idea. I would like to put this in my invitation but do not know how to execute the idea. Do I start a bank account for the registry or do I have for cash and checks. I am booking on-line to an adult-only resort in Cancun/Riveria Maya. The resort have a lot of add-on. Do anyone have any ideas?????