Here are some items that may be good to use:
an old brooch could add dimension to your dress or your bouquet. If the latch on the brooch doesn’t close properly don’t even think about using it.
your mothers dress if it can be altered to your liking and she is okay with it. If the fabric is too delicate not to ruin or your mother says "no" then you should respect that. That being said, if your mother would like you to wear her dress but it is just not for you, she should respect your decision to purchase your own.
your grandparents cake topper. Clean it well and make sure the baker designing your cake knows the dimensions in order to make a top tier that works with the topper.
family china. Keep in mind it may chip or break, but if you can wash it and find a way to incorporate a little or all of it then go for it!
antique furniture is a bit more tricky. You don’t want to ruin anything during transportation to the venue. Also be sure to check with the venue to make sure it is okay to bring your own furniture.
