Hi ytsgalaxy,
I'm not sure what rewards I could recommend to you, since I'm not sure what you enjoy.So, I'll tell you a couple of the rewards that I indulged in around 50-100 days. (I didn't necessarily reward myself at exactly 50 or 100. I just remember giving myself rewards intermittently--and frequently--around that time in my quit.)
1) I got a pair of the Vibram Five Fingers shoes to help with my aching feet. I liked this one, since it was kind of a health related purchase that I could enjoy.
2) I got my first internet-capable phone. I'd had the same cell phone and plan for some crazy long time--7 years, I think-- and didn't even have texting privileges. I got the new phone (and plan), so that I would have something to do with my hands when waiting around and/ or needing a diversion from a stressful situation. I thought that was a good idea, since cigarettes had served that purpose before.
3) I got a gym membership, so that I could take fitness classes and work out in bad weather. I felt that was a nice, health-positive purchase that I could enjoy over and over. ...And I have.
By the way, the phone and the gym were always things that I had considered to be unnecessary luxuries that I couldn't afford. Funny thing is that the monthly cost of the phone service and the gym membership combined are less than what I was spending on cigarettes. And I have enjoyed both of them immensely more than I enjoyed the repetitive act of smoking.
