Children's bicycle basket holder

My kids really wanted a basket on their bikes, but unfortunately, the bikes weren't designed for it. 

That's why I designed a holder for them to hang a basket. I also added some foam for better grip, as I had some at home. Here's a link to the foam I used below.

CITALL 5 Stück Schwarz 4 Löcher stoßfest Anti-Vibration Autokennzeichen Pads Stoßfänger Schaumstoff Aufkleber : Amazon.de: Auto & Motorrad