If you cannot find jalapeno tequila, just slice up some jalapenos and let them soak in the tequila for at least a day. If you don't want the drink to have too much of a kick, avoid getting the seeds into the tequila.
In a highball glass filled with ice, pour in one part jalapeno tequila and 4 parts orange juice.
Slowly pour the grenadine down the side of the glass allowing it to settle at the bottom.
Garnish with Maraschino cherries and jalapeno slices.
Jalapeno Tequila
Orange Juice
Grenadine
Maraschino Cherries and Jalapenos for garnish