I have a wedding cake in a few months and the bride is using an initial cake topper made of crystals/rhinestones. She wondered if I could do a crystal border between each tier to tie in with the crystals on her topper. Is this possible? This is only my 2nd wedding cake, so I need some help! Thanks!!
You could but it would be difficult to get edible one that look the same as her cake jewelry. Here is a link to some sugar jewels (made from isomalt) Just click on premade products and scroll down till you see them.
http://www.jeff-the-chef.com/store/products.html
These are the best I have seen for sugar jewels and the size might be allright for a boarder.
another option would be fondant pearls with disco dust or hologram dust so they have lots of sparkle.
I suppose you could also just put rhinestones on the cake but you would want to be careful of that as you wouldn't want anyone to accidently eat one or choke. Maybe the "jewels" beads could be strung together before being placed on the cake or glued to a ribbon so they would all be placed on and removed in one quick move for serving and lesson the danger that someone would eat one.
I hope this helps you a little. I am sorry I don't have more ideas.
Check out FancyFlours.com. They have cake jewels. I believe it is sugar candy that looks just like jewels. They are really neat, I would like to use them but haven't figured out how yet. They might work for what you want to do but they aren't cheap. Hope this helps. 
I was thinking that you could glue the crystals to the pillars that separate the tiers. I love Cake Angel's idea of gluing them to a ribbon, wrapping it around the tiers, and then taking them off in one move.
No sure what type of construction you will have but if you do stacked you could create a ring of sparkling sugar at the base of each tier
this cake has what I am describing at the ver bottom of the cake
http://www.seattlebridemag.com/ME2/Sites/dirmod.asp?sid=32B32A214A754BC5AAD944CE142E9430&nm=&type=Publishing&mod=Publications%3A%3AArticle&mid=8F3A7027421841978F18BE895F87F791&SiteID=AFE19DE26FCA4C15ACE549D79FA3E8D1&tier=4&id=688BDFAABE8F44C3A74B13C62D46E43F
here is the brand of sparkling sugar I have used before.
http://www.indiatree.com/products/decorative/sparkling-sugars.html
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