I have a Japanese made Celestron Deluxe Tele Extender for sale. Great condition, will upload pix shortly, but it is the same as this one:
http://www.ebay.com.au/itm/Celestron...-/180840040814
Model #93643
It allows you to attach your DSLR or other camera to the back of Celestron and Meade SCTs, and has room inside for an eyepiece as well should you want to do eyepiece projection.
Works really well, easy way to attach a camera to your scope. I also used it to turn my C8 into a 2000mm lens for sports photos.
Asking $55 + post.
Cheers
-Peter