Smokey eye
This eye let's off a slight smell of smoke at all times. The eye shines with a red light. When activated as a free action, you have blind sight equal to your regular vision and the sheds light in a 6' radius before overheating after 1 minute.
All gadgets created by him start at 100% power, degrading by 10% after every use. Whenever you activate a gadget you must roll a d100, rolling under the amount of power the item has left, or it stops functioning after the activation. A roll of 5% or lower does not degrade the item in any way. And it’s probably best if you don’t roll above 95%....