I created this simple but powerful shutter release remote for my Sony DSLR. With some random junk (or trip to goodwill) you can create one too.
Step 1: Find Your Items From Old Computers/electronics
To ON/OFF Buttons (I used a flip button and a push button)
Small Computer Connector (will explain more in next step)
Some kind of housing or enclosure (i used clear, flexible pvc hose - but you could use a film canister or pill bottle)
Sander (or sandpaper)