Diane Sizer graduated with a First in Ceramics and 3-D Design from Middlesex University. After having her second child, she moved into the area of designing and making children’s clothes and toys, establishing her own distinctive label, Hilda Rocket. Following eight years as a popular weekly fixture at the well-regarded Hampstead Crafts Market, she began selling handmade Hilda Rocket goods at shops across London and the south-east. She is a member of E17 Designers and exhibits at there events regularly.