My first Instructable. I found a cute candy jar being sold here in KSA that looks good for a Betta tank. The USB powered LED lamp feature was originally from Artificial Intelligence http://www.instructables.com/id/The-USB-powered-LED-CD-lamp/?ALLSTEPS(). It's USB powered because this Instructable would look good on an office table, and you could always be with your precious Betta (or any other fish) at work.
http://www.instructables.com/id/DIY-Betta-or-any-fish-Tank-with-USB-LED-Lamp/