I was looking for quite a while for a compact bag to carry my Televues eyepieces and collimator when I bring out my Lightbridge Dob. I came across a nice camera bag which already had six compartments (all adjustable), perfectly sized to hold the panoptic and Naglers as well as my Orion collimator, Powermate and red flashlight. It's an "Optex digital case OP large" which I picked up from Camera House for $49.
It has zip up compartments for smaller items such as filters also and is well padded with a nice shoulder strap. I think it is nylon fabric so it should withstand many a dewy night.
Some pictures of the fully loaded camera bag. The biggest eyepiece is a 27mm Panoptic but it will easily handle the bigger Naglers. The compartments are velcro'd in place and can be enlarged as required.
Ideal for under $50. I prefer a bag to a hard case for grab and go observing.
