Still see no good proposal for the logo. The google ones may give you some ideas...
https://www.google.com/search?hl=en&site=imghp&tbm=isch&source=hp&biw=1119&bih=668&q=jackpot+logo&oq=jackpot+logo&gs_l=img.3..0.5017.7857.0.8248.12.11.0.1.1.0.235.1771.3j3j5.11.0....0...1ac.1.42.img..5.7.667.sirdRTMx7pw