Plastic egg boxes

We use normal cardboard egg boxes to store eggs in, but after a while they get a bit tatty, and having no need to buy from the supermarket it's hard to find replacements. I was wondering about investing in some plastic egg boxes that would have the added advantage of being a bit more child-proof than the cardboard ones. I can't see much available online. Can anyone please recommend something for me or offer an alternative solution?

You will often find the plastic egg boxes in camping shops, although my experience of them is that they only held rather small eggs.  We were buying the value brand eggs from Tesco, and they simply didn't fit, so we gave up and took to wrapping eggs individually in kitchen paper and storing them in a tray in the fridge in our motorhome.  Pets at home sell a 5 pack of cardboard egg boxes for about £1.29 although you'd likely get them cheaper on ebay.

Also ask on freecycle.

Gerry