Placed here are some general references that might be useful for the participants of the astrophotography and image processing workshop
http://www.noao.edu/outreach/aop/remote.html
If you do not yet have the equipment to do astrophotography on your own, consider applying for telescope time here, or perhaps a planetarium or amateur association that you are a part of, could purchase some time on this for you. You could obtain some images from which you might be able to think of pulling out some learning science.
http://www.noao.edu/outreach/kpvc/imaging-workshop/essential-software.html
A webcam does not cost that much. Try purchasing one and bring it to the workshop, if you wish to work together with a group learning to get the maximum out of a webcam :-) There is a U-tube demonstration of it somewhere, do have a look.
http://www.rphotoz.com/webring/
These are individual pages of astrophotographers from around the world and they have done inspiring work!
http://opostaff.stsci.edu/%7Elevay/process/
http://www.sciencedaily.com/releases/2007/08/070824120456.htm
http://www.journals.uchicago.edu/doi/pdf/10.1086/380421
http://www.aavso.org/publications/ejaavso/v20n2/159.pdf