One of the coolest wedding cakes I've ever seen was at an ADPi - SAE wedding. SInce both of their pins are diamond shaped, they had the two pins, with pillare up from them, then joined with more cake and a bridge. The flowers tumbled down from the bridge, and it was truly incredible!
Then again, this was a wedding for 650 people!
Congratulations, ivysis - may you know many years of happiness together!