You just get yersef one of those rattler snaggin' sticks about 7 feet long and you'll never even have to dismount. Loop, cinch, and lift 'er right on up, but I wouldn't try using it on a rattler while you are mounted... well only once for a video!
The Tan Horse is a Norwegian Fjord....he is built like a Brickshithouse....packed a whole ELk with him one year...Has feet like a Mule so you don't have to shoe him....The rattler wouldn't even phase him....he's for sale too....I like to walk also but can't go the miles afoot anymore so I cover the ground a horseback now...