I have recently started thinking about stained glass for one of my textureing projects, I saw a beautiful fireplace screen in a magazine and am now trying to make a copy of it (not the screen, but the motif) for that set, but it got me to thinking about OTHER things, such as stained glass textures (the actual glass) and so I googled it. That led to Stained Glass PATTERNS, which, for people like me who can't free hand draw (with the computer) are a Godsend. I have actually found quite a few sites that offer free stained glass patterns for personal and non commercial use (and some for commercial use as long as you don't sell the pattern itself, just what you make with it). I have decided to use some of these for my personal use in the game and share them with you (as they were talking about making actual stained glass items to hang around your house) I haven't actually done the items I plan to make using these, but I will share the sites I have gotten the patterns from so anyone who wants to make their own can. The following is a list of sites that I have downloaded patterns off of. Some of these also have links to OTHER places to get free patterns. Also, another thing to note. Many of these come in PDF format, so you have to get the texture from there to your image editing program, it usually isn't that hard (Acrobat does have a snap shot function that works great for me) but some of them are also broken up into many different pages, (I have found two like this, one easy to put together, the other needing some cosmetic stuff done to make it look okay, not much though) so just be aware that they won't all be jpgs or gifs or even pngs.
http://www.bayareastainedglass.com/patterns.htm
http://www.acadianglassart.com/Resources.asp
http://www.artglassworld.com/index.cfm?page=main_pattern2
http://www.citrusheightsstainedglass.com/free_patterns.htm
http://citrusglass.citrus-acid.com/designs_1.htm
http://www.glasscrafters.biz/Merchant2/merchant.mv?Screen=CTGY&Category_Code=pat_floral
http://www.bennettsartglass.com/freepatterns.html
http://annabelleglass.tripod.com/id10.html
http://www.alpineglass.com/shop/free-stained-glass-patterns/7 - I think that this might be the one that has the patterns broken up, either that or ascadian, but there might be other sites that do the same.
http://www.colebrothers.com/stainedglass/patterns.html
http://www.glasspatterns.com/projects/freepatterns/index.htm
http://www.cutterstv.com/glasspatterns.html
http://actionbevel.com/pdf.html
http://greytdragons.tripod.com/Glass/patterns.htm
http://www.khue.com/dept/book.htm
http://www.stainedglassdirect.com/patterns.html
http://www.fantasyinglass.com/SiteDoc2/patterns8.html
And so far those are all the pattern sites I have managed to go to as I got side tracked by http://www.lincolnglass.com/index.cfm?page=cat_home&ALTCat=944&viewCat=918,918 which is Lincoln Stained Glass, a supplier of glass products such as stained glass. They have some absolutely gorgeous pictures of actual stained glass that I have been downloading to use as textures (I had basically ONE glass texture and it was clear) This is a wholesaler's site, so they don't exactly say whether the pics are free use or not, so I will leave it up to you to decide whether or not you want to use them.
Last, here is the site that I got all the other pattern links from: http://downeaststainedglass.com/freestainedglasspatterns.html They themselves only have one free pattern (which was misleading to me as I thought htye would have tons of them) but they do havea list of other stained glass sites that offer free patterns, not all the links work, and I am only about halfway through, and I didn't list all theones I have went through either, just the ones that I personally downloaded stuff from.
So, I hope you enjoy