He has many dog toys, but his favorite things are things he's not allowed to have. Anything will do - the TV remote, a roll of toilet paper, clothes, towels, your eyeglasses - doesn't matter as long as it's not his.
I can sympathize Seth.
I used to have a Doberman, Ceasar, that had a thing for my shirts. At the time I was single and still mingling, and made good money so I used to buy expensive clothes for my mingling. Anyway, Ceasar seemed to like the quality more than me because the first time I would wash them, he'd rip them off the clothesline. I'd always come home to find my new shirts torn to shreds. He never touched my old shirts or my painting clothes, just my new shirts. I tried everything i could think off to stop him, but because he usually did this while I was at work, I never caught him in the act. I hid water filled balloons in the sleeves so he'd pop them and get wet, tried rubbing chilli on them and a few other spices that I thought might work but nothing worked. After about 6 months and a couple off thousand dollars in clothes, I'd had enough. I started to set up a tarp under the clothes line that I planned to fill with water and connect a car battery to, with the other terminal going to the wet clothes. The plan was that as soon as he completed the circuit by grabbing the shirt, he'd get a small shock and hopefully learn to leave the clothes alone. I never followed through with the plan though because for some reason, on that same day I planned to put the tarp out, he stopped of his own accord. I came home and my shirts were still hanging and untouched. Maybe my months of yelling and pointing finally got though to him. Who knows.
The best part is that a few years later I got a female doberman I named Vixen. Unbelievably, she started doing the same thing. Again, only my newest and best clothes. She'd only done it 3 times when for some reason I don't recall, I was unusually home during the day. I saw her approach the clothes and I thought great, if I I catch her in the act, she'll know why she's in trouble and stop. But before I could open the window I noticed Ceasar sneaking up behind her, like he was on the hunt. A soon as vixen reached up to grab the shirt, Ceasar pounced up behind her and nipped her on her butt. She never touched my clothes again.
Ceasar got a nice big bone for a treat that day.