We finally got a decent snow, but I am too cheap to go out and buy a sled. I had some old skis lying around, so....
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Step 1: Find Some Skis
Oh, look! Some old snow skis sitting in my shop!
Step 2: Inventory Scrap Lumber
I had some 1-by 4's, some 2x4's, and some other scrap...
Step 3: Gather Tools
I used a Jigsaw to shape the "boot" (you'll see what i mean in the next step. Plus a cordless drill, skillsaw, and a bunch of drywall screws.
Step 4: Make the "boot"
I started to take the bindings off, and attach the boards some other way, but then I had a bright idea to make a "boot" that would snap into the bindings like a ski boot. measure and cut the heel and toe to the approximate shape of the inside of the bindings. Cut out of 1x4 (may need to shave the board a hair thinner to fit under the binding lips. Then snap it in.
Step 5: Build Frame Up and Attach Top
I got carried away and didn't take pictures during this part, sorry :( Basically, I just added a 2x4 on top of the "boot". Then, I screwed another 12" 2x4 and 1x4 together to match the level. These blocks went in front of the binding. The top is made of 1x6 or 1x8's screwed to the "boots" and front blocks, and then fastened together with 1x2's. I then drilled a couple holes in the front for the rope.
That's all there is to it! Here are a couple videos of me trying it out ;)