How do I activate the iPhone 7 home button without using my finger?

I commute via motorcycle Over 100 miles a day. I use a waterproof case that clamps to my handlebars to keep it in so I can view it, change music, etc. The new home button does not work through the case. I know the phone is waterproof and I don't have a problem cutting a hole in the case if I have to. But is there any way to unlock the phone without taking my gloves off? Or is there any material that I could put over the home button inside the case that would activate it so I could enter my passcode?

Thanks