Cardboard smartphone projector, €21

Who needs to spend hundreds on a projector? Not people with smartphones, some cardboard and a DIY attitude. The cardboard smartphone projector makes it easy for you to share your videos, photos and other interesting material with a crowd of onlookers quickly, easily and without having to auction off some of your most prized possessions to fund it.

It’s made from hard-wearing cardboard, with a silicon grip to secure your phone.

The lens will magnify your videos by up to eight times, allowing you to project your videos on to a wall to share them with the masses.

The downside is you have to assemble it yourself so invest in glue and mind you don’t stick your fingers together. firebox.com