Centrepiece size help!

How many people per table?

Does your venue have high ceilings? IMO tall centerpieces look better at venues with high ceilings and visa versa.

To be honest I've seen loads of dressed tables on my travels and I've never noticed a centre piece being too big or too small. I agree with Funky about the ceiling height though. Try Ikea for containers though....I picked up 10 stylish glass vases for 1.98 each .... bargain!

This wedding had 8 seater round tables or could have been 6! It's a while ago:-

You can use whatever size you want but for fishbowls on a table seating 8 to 10 then a good size is between 20 and 30 cm diameter depending on what else is going on the table.

With buckets you need to think about the height and if they will block off peoples view accross the table. Usually shallow and wide are better for sweets than tall and narrow