The wine backpacks sound lovely, even if it's expensive! Maybe get a bottle of their favourite wines and print a custom label to stick on it? Canva is a pretty accessible, and free, graphic design app you could use.

I'm making embroidery portraits of each member of our wedding party (only stabbed my hand a couple of times so far!) and my girls are also receiving rose quartz bracelets -- because the pink compliments their dresses, and as rose quartz is "the love stone," I'll be writing letters for each one that say how much I love them. I'm a total sap!

The bracelets were $30 each from a small company and the embroidery thread, fabric and frames cost me about $60 total.

Good luck, and congrats!