We got ours from the vets and wow did it come in handy last year, I had never seen a tick in 'real life' before I moved up here but I must have removed hundreds in total from my horses and dogs last summer.
Thankfully the dogs are now living with us at the Steading and the horses have moved to better grazing, well grazing that has actually been grazed, where they were last year it hadnt been touched for I dont know how long so the grass was waist high, ticks everywhere and we had 5 snake bites to deal with too! One on one of my horses, one on two dogs and two on one dog!! I should have been guest of honour at the vets xmas doo!
Have only seen 2 ticks this year so far so great improvement, funnily enough, I cant find the tick removers!!