If you're going to buy one boy's toy this summer, make sure it's one of these. This fabulous toy vehicle collection from ethical US brand Greentoys is bold, bright, lightweight and just perfect for little hands to play with. And what makes these toys extra special is that they are all made from 100% recycled plastic milk jugs! Proof if ever there was that plastic toys can look both child-appealing AND stylish. We love this smart orange and grey tractor, £15.49 (pictured above, and brand new to the Greentoys collection), featuring big wheels and a trailer to stash away and transport all those important bits and pieces. It'll guarantee hours of fun for little ones of all ages. And then there's this lovely yellow seaplane, ideal for play at land or at sea. Floating in the water on chunky, over-sized pontoons, it also features a spinning propeller ready for take-off into the sky and beyond. £14.99. It's single-seater, retro-style airplane counterpart is every bit as fun, with its spinning propeller, two-wheeled landing gear and racing stripes on its rounded wings. £13.49. This beautiful blue submarine toy offers so much water-play-value. With its spinning rear propeller, when submerged under water it will explore the bottom of the bath tub, and then float back to the surface again! And its classic jug handle shape and wide-mouth opening is just perfect for scooping and pouring water. £9.99. And last but certainly not least, the ferry - which is built to float on water and features a ramp and 2 passenger vehicles. It's not available in the UK just yet, but if you can hold on until the end of July, it will be. You can own one or all of these lovely toys by visiting Bigjigs - and don't forget to have a look at the rest of the Greentoys collection, too. There are trucks, tool sets and even tea sets, each as ethical and stylish as the other - and all stemming from the same amazingly eco-friendly, plastic milk bottle place.