Pawbreakers don't smell like anything to me (but then with my allergies, how would I know?) but the scent must be extremely tantalizing to cats as no sooner did we get home but one of our cats began searching my book-bag. I toed off my shoes, grabbed still-sealed package with the Pawbreaker, and unwrapped it for them. The cats then spent several minutes batting it around our kitchen floor. I'm sure they'd have been at it for considerably longer, however we soon realized that the sound of the ball rolling around on the bare floor would prevent our houseguests from getting any sleep.
Although I'm sure it will put us at risk of increasing the already surprising problem-solving capabilities of our wee beasts, I think I'm going to have to buy more of these for the lads.