PAGING MOONPIG or perhaps a Florist HIB?

Ha! The shoes, the flowers, the cake....

WE ALL WANT A MOONPIG WEDDING!

I would just use wide ribbon and then you can either have the ends trailling or fastened like Moonpig's with 2 pins

Basically, you can do the same thing with organza ribbon. I can get them for you if you are stuck but it's not something I use myself as it works out cheaper to put your own ribbon on.

Are you using fresh or artificial flowers?

Fresh, ivory roses I'm thinking. Thanks for the tips RF/JJ

Well, you will need to keep a good 2/3" of stem showing because they'll need to be stored in water until you are ready to use them on the morning of the wedding. Once you have arranged the roses as you would like them, tie them with twine in the centre wrapping the string around several times tightly so the flowers don't slip, cover the twine with satin ribbon then overlay the satin ribbon with organza ribbon. Fold the ribbon over at the join so you have a neat edge and push a pearl headed pin through to fasten it closed. Continue with the pins along the stems and, if you like, add a trailing organza bow. Cut the stems at a sharp angle with scissors and store in a cool, dark place in just enough water to cover the stems without wetting the ribbon.

Edited to add, on the morning of the wedding after you've taken them out of the water, dry the stems so it doesn't dribble on your dress!

Https://www.britanniadirect.org.uk/acatalog/BridalBasics.html

They are a little bit cheaper here than e bay

Thanks very much Marilyn that's really helpful