That's a bad moment when oil spills onto your driveway. I measured the end of the oil drain valve on the drain valve of my Briggs & Stratton equipped mower. It is just over a half inch O.D. I think a short length of 1/2" rubber hose over the end of the drain valve is the way to solve this problem.
I have an X500 too, I stuff a rag up underneath the filter, Shove a funnel up underneath the filter drain chute, and hold it into a milk jug as I unscrew the filter. Let that drain, then wipe it all down. The milk jug will balance on the deck and then I let the oil drain into the funnel into the milk jug. Works pretty good. Also when you go to do your trans maint, the holes in the rear fender that are designed to hold your umbrella and or weather enclosure will also hold a funnel with a fill tube. I obtained a cheapo from O'Reilly and fed the hose down through the fender into the top of the trans fill tube.
I've had many of those oil spills over the years, thats always a pain in the but to clean up.
Thanks everyone for the great solutions, I'm normally no so clumsy. I ran to work to get an adjustable filter wrench, then pulled back in and saw the mess. So I went back to work for floor dry. Next time I won't leave it, and also use a tube or funnel.
I always keep a couple of broken-down cardboard boxes up against the wall of my garage, for just such an occasion. I can never do an oil change without a couple of drips. Plus,when changing the oil in the vehicles, laying on cardboard is just a little bit better than lying on a cold concrete floor!
And then finally a 5-gallon bucket of kitty litter/oil dry to clean up the big spills when they happen. And they do!