20 Next-Level Inventions you didn't think were Possible.

Clever idea that links air temperature to in-game events, but he scores it a middling 5.5 out of 10.

Interesting concept that reduces perceived weight when running, scored 6 out of 10 but it looks unfinished.

Suitcase follows you via a bracelet, but he wonders about battery life and gives it 6 out of 10.

Autonomous tennis ball collector that is a fun concept, scored 6 out of 10 for now.

Bicycle-powered washing machine with big positive knock-on effects for developing countries, scored 7 out of 10.

Biodegradable edible spoons made from grains with a long shelf life, rated 7 out of 10 alongside edible packaging.

Floating bin that captures plastic from the sea, docked a point because it needs electricity, 7 out of 10.

Seaweed-based edible water pods that could replace clear plastic packaging, scored 8 out of 10.

Metal alloy pencil notebook that never runs out and works anywhere, scored 8 out of 10.

Promising smart glasses concept, but he says the execution is not quite there yet.

Rechargeable arc lighter that avoids fuel and flame, scored 8 out of 10.

Uses a vacuum cleaner to mould copies of objects in almost any material, scored 8 out of 10.

Obstacle-avoiding autonomous drone that keeps tracking you even out of sight, scored 9 out of 10.

Amphibious bike and jet ski hybrid he jokes is perfect for criminals, scored 9 out of 10 and he still wants one.

Fake sky panel with its own moving sun, his top pick at 9.5 out of 10, though far too expensive for him.