SWR for "just now", "from my hand", lost an object?

Solution 1:

I usually just say I "spaced" my phone/keys/book/screwdriver/glasses/drink that I was just holding.

In the vernacular, spaced usually means someone overlooked something due to inattention or forgetfulness, both of which point to loss of focus (which is the usual cause of what you're describing).

Solution 2:

There is a process from chemistry called sublimation. It describes a solid becoming a gas, for example, snow becoming water vapor.

To be transformed directly from the solid to the gaseous state or from the gaseous to the solid state without becoming a liquid.

A more recognizable term is evaporation, but that refers to a liquid becoming a gas.

Perhaps the puzzling disappearance of a solid item could be expressed as:

Damn, my car keys just sublimed.

Or perhaps more accessibly:

My iPad evaporated again.

This might have the additional benefit of applying a scientific veneer to an all-too-human failing. Both the hearer and the listener know the iPad didn't become a gas.

Solution 3:

Say, your keys got "raptured".