Padded Slip and Slide

I thought it would be fun to participate in slipping and sliding with my kids last summer.  I lined up for a good sprint, slowly increased my speed as my white chest streaked across our back yard and then threw myself, sprawling, into the air head first with arms outstretched in perfect parallel with the ground.  I came crashing down with a thud and smacked my face on the ground, every muscle in my body flexing with the blow.  "Wow," I wheezed as I staggered away from the scene of the accident, "I don't remember it hurting so much."  Now that I know better I think they should invent a slip and slide with padding on the bottom so you don't feel every little worm hill as you slide along your back yard.