T5 challenge

Well, I joined a Canadian online miniature group, and they're having a trash to treasure challenge.  The ladies are all very talented, so my attempt at this challenge is going to fall far short, but I want to try, anyway.
When I first read the list of items we have to use, an idea popped into my head right away.
I read "napkin, tea bag," and thought "Treasure map!"  I thought I could dye the napkin with the tea and crumple the napkin up to look like an old treasure map.  I thought it would be cool to make it a 3D treasure map, with a sunken boat (the mast made of toothpicks sticking up out of the water), an anchor (paper clip),rickety falling apart dock (stir sticks and toothpicks), rowboat (stirsticks), skull (beads from Halloween), palm tree fronds (feathers painted green).  I'm allowed to use felt, a piece of green material, a piece of card stock, foam board, and other things.  We're allowed to use glue and whatever else we need to put it together...I wonder if that includes spackle, so I can make some caves?
Anyway, I have no experience with minis (other than my plastic canvas dollhouses), so even though I have lots of ideas, I don't know if I can put them into practice.
I tried playing around today, and this is what I have so far.  It's very rough...I was just trying to see if it could be done.  There's no stain or paint or anything, and the clamps are still holding the pieces together:

Rickety dock out of 4 toothpicks, 2 caps, part of one stir stick.  Rowboat from stir sticks, left overs from dock.

 

After the glue dries, I'm going to paint the caps grey to resemble cement, and stain the dock and boat.  I have to make a bottom for the boat, out of card stock.  I have weird looking toothpicks that I found at the dollar store that will make perfect oars when cut in half.  The toothpick sticking out of the boat isn't part of the boat; I just put it there to give the clamp something to hold onto.