I thought I'd share this tuckbox I made for the cards in "Kahuna".
I'm not a big fan of the insert that came with the Rio Grande version so I needed something to hold the cards in an empty game box. The tuckbox does however snugly fit into the insert's card slot, though I imagine that may depend on the thickness of the card stock you use to build it.
Tuckbox was generated using online software provided by Craig P. Forbes at
http://www.cpforbes.net/tuckbox/.