Okay as I understand it you want $25 per bottle donated.
It can be found on fleabay for less -
http://www.ebay.com/itm/SIMONIZ-GLAS...25.m3641.l6368
http://www.ebay.com/itm/SIMONIZ-GLAS...967266&vxp=mtr
Are you being a little greedy here since you got it for free?
Why not $15 per bottle since you can mail if 1st class mail for ~$2.30 and pp fee is only 3% ($.45)? ..........You would still make about $12 per bottle.