Hellobee Boards

What about this? The jacket comes off and it is sleeveless.

http://www1.macys.com/shop/product/jessica-howard-beaded-lace-sheath-and-jacket?ID=799786&CategoryID=5449&LinkType=#fn=COLOR%3DGold;;Tan/Beige%26DRESS_OCCASION%3DEvening/Formal%26SIZE%3D14%26sp%3D1%26spc%3D16%26ruleId%3D65%26slotId%3D4

Heres a simple vintage one, for cheap.

https://www.etsy.com/listing/116283628/beautiful-size-14-jessica-howard-tank?utm_source=google&utm_medium=product_listing_promoted&utm_campaign=vintage_mid

This ebay seller has quite a few J Crew bridesmaid dresses in your size.

Here's one, but there are more.
http://www.ebay.com/itm/J-Crew-250-Silk-Chiffon-Heidi-Dress-14-Champagne-cocktail-party-bridesmaid-/201010424304?_trksid=p2054897.l4276

@bunnylove08: do you have any preference for strapless? short sleeve? sleeveless? any type of neckline you like? day or evening wedding?

david's bridal has this one on sale for $49.99 and it's available in your size http://www.davidsbridal.com/Product_Short-Strapless-Dress-with-Sequin-Bodice-F15419_Sale-Sale-All-Sale

this one is also available in your size, it doesn't have sparkle, but i think you could add sparkle around the waist. it's also on sale for $49.99 http://www.davidsbridal.com/Product_Short-Cotton-Dress-with-Y-Neck-and-Skirt-Pleating-83690_Sale-Sale-All-Sale