Required Item

Not only can you change the required item. You can change what item it takes when spinning and give a completely different item when the player wins! Let's navigate to server/utils.lua.

function CanSpin(source, betAmount)
    local itemName = 'cash'
    local itemCount = exports.ox_inventory:GetItemCount(source, itemName)

    ...
end

Simply change the itemName variable to whatever item you want to use. The same goes goes for the rewarding.

function RewardPlayer(source, winAmount)
    local itemName = 'cash'
    ...
end

Same changes apply here :D