I am trying to find the manufacturer of stemmed glass cloches that I can serve dessert in for a large function

Answer 1

Here is a discount supplier. There are many sizes to choose from at very reasonable prices.

Answer 2

http://www.englishcreekgardens.com/Cloche2.htm

You could also try this product instead:
http://shopping.allrecipes.com/productDetail.asp?SID=&REFURL=I198&txtproductId=34724&SelTab=Kitchen&CatID=KIT&SubCatID=SRV&CatText=KIT%5FH%2EGIF&SubCatText=KIT%5FSRV%5FH%2EJPG&shopperid=KMCG8AAP122K9HTD1RW1CA19LE7DDWS0