I haven't figured out how to hack medals yet. There is a way to hack tickets within the Pumpkin Products but you have to have more than 1 item that costs tickets (the refill CP 10 tickets doesn't work though)
To hack money, get to the point where you can send your driver on a drive. In the beginning after the first sale, search that amount in gameplayer/ igameguardian/ game gem. Wait for the truck driver to make another sale and then search that amount as well. Repeat the process until you only have 1 result and set it to like 9,999,999,999
EDIT: for more medals I found you can Hack the SP for the lucky spin. Sell an old recipe you don't use, search your current SP, sell another recipe and update the new SP search. Repeat until 1-2 results. Change (them) to whatever you want. The higher the better. NOTE: it will reset to just 9,999 if you close the game and open it again later. To get higher SP again just follow those guidelines again but instead just spin the wheel in lucky spin and search that way, so you don't have to get rid of any recipes.