Cakes on this page all used my collections consisting of 175 seashells.    This collection is great for 4-6 tier cakes ranging in sizes from 175 or more servings.
This is a great collection also for cakes that are separated on individual stands and you want to use alot of seashells on the tops of each cake as well as some on the sides.  
also in the collection splitting some on a bridal cake then using apx 25-30%
on a grooms cakes  works really well. 

looks can vary based on a full cascade down the front with a few shells around the back  or a more even distribution around the cake and also just how many are used on the top of the cake...  A full shell topper can use as many as 15-18 shells.
Split this collection between your bridal cake and your groom's cake