In my experience, makeshift wheel weights are a disaster waiting to happen. I once saw a friend use washers and zip ties to balance a tire, and it shook the whole front end loose after a few miles. The vibration was so bad he thought his axle was going to fall out, but your mileage may vary with different DIY methods. It took a real alignment and proper weights to fix the wobble, which cost more than just getting it done right the first time. Sometimes the quick fix ends up being the most expensive one, from what I've seen.