I recently found out this tool is used to ensure large concrete pours properly fill narrow forms, like walls.
Given it's oblong shape and that it vibrates, well, it would be perfect as an 'industrial-level' toy!
Perhaps for synthetic beings or scaled-up versions for larger creatures?
Examples seen here: https://duckduckgo.com/?q=concrete+vibrator&atb=v175-3_j&iax=images&ia=images
I hope this inspires some of you wonderfully creative NSFW artists out there!

lurkinglupinoyd said:
I hope this inspires some of you wonderfully creative NSFW artists out there!

Do you have any concrete ideas?
sorry for the bad pun

mantikor said:
Do you have any concrete ideas?
sorry for the bad pun

Alas, nothing set in stone! XD
The vibrations could be intense enough to have amusing effects, like making the voice modulate in interesting ways...
Puns is fun!

The mention of "concrete vibrator", and it made me of a close enough mention of the concrete dildo scene from The Naked Gun series.

As long as the vibrator is set to low, it's all set.

alexyorim said:
The mention of "concrete vibrator", and it made me of a close enough mention of the concrete dildo scene from The Naked Gun series.

As long as the vibrator is set to low, it's all set.

Ha, that's a great one! XD