Emma Jane Cake Design - Think outside the square when it comes to adding extra height, I'm all about making a statement and love tall cakes. I've just ordered this set from
Tall Cake Dome
Huge Cake Dummies – Cake Dummies
Crave Cupcakes - Cakes | XtraTall Tier Cake
Amazon.com | Barski - Euorpean Quality Glass - Extra Large Glass - Clear - Cake Dome - 11.5" Diameter - Made in Europe: Cake Stands
2 Sets 4 Tiers Extra Tall Clear Cake Boxes and Ribbon - Etsy Canada