What is the tiny moveable object that suddenly appeared on my android phone.

[AC Question]

The object is rectangular in shape sort of like a tiny battery or tiny cigarette with a green or blue tip.

 

[sethyboy]

Is it possible an app you installed recently caused this? Could you take a screenshot (usually by holding Power + Volume Down, or Power + Home button on Samsung phones) and post it here so we can see exactly what you're talking about?