A few nice running equipment images I found:

Leading by example

Image by Vurnman
I don’t think this is allowed in agility competition, but it makes for a good time with your dog.

Royal Marines from 40 Commando Conducting FIBUA

Image by Defence Images
Royal Marines from 40 Commando break through a smoke cover to assault a building during FIBUA training (Fighting in a Built Up Area) at Copehill down on Salisbury Plain.
This image is available for non-commercial, high resolution download at www.defenceimages.mod.uk subject to terms and conditions. Search for image number 45148947.jpg
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Photographer: POA(Phot) Sean Clee
Image 45148947.jpg from www.defenceimages.mod.uk