Celestron T-adaptor for C90 (and others) with original box.
Part #93635-A $15
Celestron deluxe tele-extender model #93643 with original
box and instructions. $25
Orion star diagonal (this has a small hole drilled in the
tube where the eyepiece inserts (see picture) which does
not affect the performance. No box or end caps. $10 SALE PENDING
These are all in used condition but fully functional!
Prices don't include shipping- add $4 for priority mail
shipping on any of them.