Here is a very nice table designed for crafting but which will work great for LARPing/camping. It's a huge surface, but the sides drop down to make a much smaller box for transport and traveling. - Ray's Wood Ways: Cutting Table
DIY Sewing and Cutting Table - with storage cubbies underneath!
Ikea Kallax Hack: Craft Room Storage - Hack the Ikea Kallax shelf to build a worktable with a huge surface, convenient craft storage and easy mobility by sandwiching three small storage units between (Top View)