Didj extra cart stowage for didj'ers on the go

The great thing besides how versatile the didj is for hacking is it's value as a teaching tool.  Sorry to all you hackers this may not prove to be very useful to you, unless you still use carts when hacking a didj.
The drawback to the didj is that the games are a small form factor.  I guess leapfrog's response to that is to package them in custom formed DVD cases.  When we go out and my son wants to bring a couple games neither he nor I want to be dragging around DVD sized boxes with little game carts in them just so he doesn't get bored with one game and want to play another.  

Sure we could buy a bag or something similar that he can bring with him, but why complicate things?   This morning was the last straw.  He had taken his didj to bed and brought an extra cart with him.  But during the night he lost one of the carts.  It was easily found but I decided for those times when he's not bringing the boxes and is only going to bring an extra game a small pouch on the back would suffice.

Step 1 Gather your gear

For my pouch I sourced a mylar like bag that was afixed to a bottle of colorflame citronella oil. 
The bag held the special wick that is needed for the colorflame oil.  The pouch is just slightly longer than the game cart so this is a good fit.  
Now I realize unless you actually have a colorflame bottle with the little wick bag these directions will be...well, not too terribly helpful.  But I'll walk you through what I did, and it should give you an idea of how to work out your own.  You'll have to source your own small bag/envelope/etc to use.
One option might be to create a pouch from a fedex envelope.