Once the mask was done, I made the basket that ET rode the bike in. It was not as robust as I wanted, but was running short on time. Any type of box would work, just so long as you can cut bits out to make it look like a basket. I stood inside it, had rope underneath for make shift suspenders and then wrapped a white sheet over my head and let the extra hang out in the basket.
I used a heavy fabric to make the hands, put some brown paint on it to match the face and then place a red glow stick in at the top of one finger. When I tipped my finger one way, the gel from the glow stick would pour forward and it would light up red, ET style.
It was a pretty creepy costume but super fun to make!