I'm making my first four tier cake for a 50th wedding anniversary. The customer wants spacers with sugar flowers between each tier (they are paying for all of the sugar flowers to be bought). I am comfortable with everything except the spacers. SO, I have NO idea how to make the sugar flowers stay on/in them. There should be no empty space - all flowers. Any assistance would be helpful.(We are recreating a cake so not much room for creativity.)

4"
8"
spacer
12"
spacer
16"

What are you using as spacers? If using styrofoam dummies (and the flowers are on wires), you simply stick them in.

Well thats my question essentially. SHOULD I be using styrofoam? How would that support the tier on top? I planned on using dowels for the cake tiers. What are my other options?

The flowers that are eig bought have a medium thickness wire stem that is proably 2" long. Is that eough to hold?

I've done this before (on a much smaller scale) and I took a round of styro then glued a round of foamcore board to the top and another to the bottom then put a ribbon around it to hide the foam - but you don't need the ribbon - you need the exposed styro to stick your flowers stems into. The internal supports under the foam sandwich keeps everything from moving - and then you insert sharpened dowels (shish kabob skewers) through it all for stability during delivery. However, I wouldn't stack more than three tiers in this case. And I'd arrive early to insert the flowers to prevent breakage during travel.

Thank you! That really cleared up my ervousness. Last question..... Where do I buy the foam? should my cake store have it? Sorry, this is my largest cake so far, and I am learning as I go!

Google search for styrofoam cake dummies. I doubt that your local cake shop would have them in stock, but you never know if you don't ask. I'd purchase dummies that are 2" smaller in diameter than the tier above.

Or they should be available at your local Michael's