Ouch! Don't do it!
A pile of painful-looking and embarrasing x-rays at Radiopaedia.org
Remember, if you are going to shove someithing into one of your orifices, whether it be for pleasure or nutriment, make sure that there is a means of getting the thing out again.
Personally I would recommend attaching any probe to a broomstick . . .
They toy car thing is a direct result of Jackass - The Movie.