Amols on South Flores near Durango downtown has been around FOREVER and has everything you could ever need for parties/events/weddings. Plus they have actual human beings with brains for employees, unlike some of these other "Party City"-like stores, and you will always get friendly help and suggestions. They go above and beyond to help make your events successful (says the one who is addicted to hosting parties ;-)
Amols Specialty Inc
710 S Flores Street, San Antonio, TX 78204
phone: (210) 227-1457
or check out their website:
www.amols.com