[grommuter]

Amazon.com: YITAMOTOR Universal Sport Bike Motorcycle Front & Rear Combo Wheel Lift Stand Swingarm Paddock Fork Stands Fits Yamaha Honda Kawasaki Ducati : Automotive
I use these for the grom.

I also use these, paid $72.99 shipped for the pair of front and rear. That link is dead but the same stands are ubiquitous on Amazon and Ebay, and I think they're perfect for the Monkey or the Grom. Easy to use, sturdy, no need for spools. I wouldn't use them on anything much bigger, but for this application they are a great option.