I've previously seen arcade-like stands for orginal gameboy, and psp ( [http://com/2008/03/quite-possibly-the-moste-useless-yet-awesome-psp-accessory-ever/ to view this psp one clik here] ). When I saw this PSP one few hours ago i kept myself looking for ds one (because it would be cooler to play some of touch screen games), but i found nothing-so I made one myself.
Step 1: Project
The first thing you have to make is a good project- the easiest way (which I've choosen) was to put ds sideway while it was open on a sheet of paper and then i drew the outlines of DS's back (making the lines as straight as I could). That gaves us the DS's holder (from side-view). Now you have to add some lines to make it an example of side-wall of our arcade stand (keep in mind that the DS's holder should be in a position to make LCD viewable). If it doesn't look good or It does not give you satisfaction, do this step again.
Step 2: Making the Project on a Cardboard
Now you have to draw your side wall project on sort of a big cardboard, and draw the back wall and flipped side wall (and other walls that will be in front and at the top/bottom). On the picture there is a little help for you about building arcade stands/machines for newbies (this is the simpliest example of how-to-make-one, it's not precise but fast ;). In our arcade stand The X lengh is about 9cm (it's because the DS's sides will be sticking out for more usable L & R buttons), and the Y lengh is your personal thing ;)
Step 3: Cutting, Glueing and Turning the Cardboard
Now we have to cut what we have drew on this cardboard, then turn the walls to make our 2D-cardboard a 3D-box (then glue it, or use other metod if you like). While cutting keep in mind that you will have to use a charger sometime or GBA cartriges that stick out, so left holes for them(on my photo you can see a good example of how I did it). Personally I just cut those mostly unneeded walls, and made a little hole for cable (I didn't make a bottom for the stand because I'm lazy ;P ). If you're ready, congrats, you have an arcade stand!
Step 4: Pimping Out the Stand
Now the best part: pimp it out, it's an arcade stand and it have to look colourful and a bit of stupid ;P I really had no time so I added a smile sticker as you can see ;) Have fun making this and thanks for reading my first instructable ;)