1) Playing DVDs, since it works better than the drive in the 360.
2) Playing Transformers over and over and over in HD
3) Convince dumb friends its the new mini-xbox
4) Book-end
5) Play toy for the dog
6) Drink holder
7) Foot rest
8) Playing movies on that old X360 you have whose drive stopped working 2 days after the warranty expired
9) TV series marathon tool, so your X360 can hold 2 episode discs at once
10) Sold on Ebay in 10 years as a 'rare player'
 
11) Throwing weapon to disadvantage your friends in multiplayer games
12) Disc holder
13) Frisbee (not a particularly good one though)
14) Example product for an assignment on how NOT to launch a product
15) Portable DVD drive for your laptop that's older than your mum
16) Sell the chrome drive tray to someone who bought a core console
17) Riot tool: it breaks windows like bricks but is easier on your throwing arm
18) Somewhere to finally put that sticker that came with your Xbox
19) Sticky tape it to your cat and upload to lolcats with text “HD-DVD cat is discontinued”
20) Monitor stand

21) Sit it on top of your TV in order to look uber tech
22) The next time your friend asks to borrow your Wii put the player in a bag and give it to him, he will be home by the time he works it out
23) Buy 50 and use as dominos
24) Eat the entire drive and upload the video to Youtube for instant fame
25) Take it everywhere with you pretending it is your infant child
26) Play HD-DVDs (duh)
27) Use the universal remote that came with it to turn off your neighbours TV
28) Turn it upside down and watch your friends try to put a movie in
29) Use it to play music CDs while playing a game
30) Practice wrestling moves on it

31) Balance it on your dog's nose for amusement
32) Test the durability of the plastic case
33) Give it to someone you don't really like as a birthday present.... with no movies
34) Open the case when you get bored: Microsoft makes them like Chinese puzzles