Rose, aged 8, has added hearts to her dress including a big one right in the middle. Unfortunately we're not publishing any more designs - but thank you for all your wonderful ideas!
Kate, 10, from London has designed a purple and orange dress with a bright green bow.
Sofia says her design "has small layers to make the dress look pretty, feminine and delicate, which I think is what a woman wants her dress to be like on her wedding day."
Jasmin, aged, 9, has decorated her blue silk dress with silver stars.
Charlotte has decorated her dress with poppies and stars.
13-year-old Hannah has chosen to use a very pretty mint green colour in her dress design.
Sophie, 9, has chosen a theme of pink and white for her design.
Lucy, 8, thinks Kate would look pretty in pink!
Erin's design has been inspired by the wedding rhyme, 'something old, something new, something borrowed, something blue'.
Friends Emma and Grace both 8, designed their dress together.
Nikita, 9, has designed a short dress with a bow at the front.
Not only has Ellie designed a dress, she has included a bag, flowers, veil and even lipstick!
Miranda, 10, from Devon has designed a pale lilac dress with a gold crown and matching lilac veil.
Ellie, 9, from Leeds has designed a very striking aqua-coloured dress, with a matching aqua flower.
Louise went with the pink silk idea to add a bit more pazzazz!
I hope Kate likes it, she says.
11-year-old Katie's short-sleeved design also includes a very large veil!
Maya, 7, from Northern Ireland has included wedding gloves, tiara, earrings and shoes in her design.
Victoria's dress design comes complete with hat and gloves to match. Everything is white but the hat also has specs of black in it.
Sarah's design has a diamond on the belt, gloves and a puffed sleeve.
Imogen tells us her design features lace on the sleeves and bottom of the dress. And the finest
silk for the body and a silver chain.
8-year-old Mya has come up with an interesting design - we like the windswept looking hemline!
Eva's white dress has some added colour with red beads around its edges. Or perhaps they are rubies!
Katie, 12, from Shoreham-By-sea has made two designs - one showing a short dress and the other, a longer one.
Henry, 7, from Suffolk has drawn the front and back of his design - which features bright yellow flowers.
Georgia, 12, has included a head dress, flower and belt in her design.
Sophie has designed a white dress with a long train. She has even featured Westminster Cathedral in the background.
Here is Bethany's design - complete with a tiara.
Georgina's dress is full of layers and ruffles - we love all the detail she's put into it.
10-year-old Lydia tells us her dress for Kate would be made out of feathers, silk and diamonds.
Shaikul, 11, has chosen very bold colours for her design. Kate would certainly stand out in this dress!
11-year-old Lauren has shown us how the front and back of her dress would look. Her design includes a lovely criss cross pattern at the back.
Tia has gone for a very simple, yet stylish dress and veil.
Emma has chosen a blue dress with matching gloves. It also includes a tiara and a rather large veil with red flowers on it.
Lola's design is a green and orange flower wedding dress. Loving the bright colours, Lola!
Billy's dress is called "Za Za". It has 9000000000000000000000 gold beads on it!
Kate, 13 from Berkshire has designed a lavender coloured dress and veil with a striking black bow!
Niamh from the Isle of Wight has included a train that's 10 metres long and has used 80 pearls and 40 diamonds on the dress.
Anna, 12, from Middlesex has added pearls to her dress and has included some silk gloves. She's also thought about an important accessory for the dress - the shoes!
Poppy's dress is made from white lace, with a white lace veil and grey velvet ribbon.
Remi, 10, has designed a silk dress, covered with diamonds - certainly fit for princess!
This is Gemma's 'thoroughly modern dress design' for the new princess. Kate will definitely stand out in an electric blue dress with red polka dots!
Olivia, 10, from Taunton has used netting over the dress in her design.
Gorgie, 7, from Oxford thinks that a lot of detail in the dress would look nice. Just look at all the beading!
Ellie, 9, from the West Midlands has gone traditional, with a classic white wedding dress.
Sandra, 12, likes the long, straight look!
Emma, 9, from North Shields has designed an off-the-shoulder number with a long, flowing veil.