If you want a disposable speculum you COULD ask for one. Most doctors would say yes, some would be curious why you want one. Just tell him you'd like to be able to look "down there" at home. Most would be happy you're concerned about your own bits and you want to take a look.
There's a chapter in the book "Our Bodies, Ourselves" about women actually having get togethers to see what their vaginas and cervices look like.
Don't steal. Just ask.
Most doctor's stethoscopes cost well over $100. The one Mashie gave me was over $400. They're available on Amazon, so nobody needs to know you want to play doctor.. We're not rich (contrary to what most people think about doctors) having an expensive piece of medical disappear hurts.
Thank you for understanding..