My Suggestion for Roulette (You can of course delete this if you don't like it)

First you say your stake
You can bet on an indiviual number, a colour or an odd or even
Then you role the "roulette" dice
If you bet less than 50 you win your bet x10 if you bet on a colour, you win your bet x50 if you bet on odd or even and you get your bet x100 if you bet on an individual number
If you bet 51 or more you win your bet x100 if you bet on a colour, you win your bet x500 if you bet on odd or even and you get your bet x1000 if you bet on an individual number
The roulette dice will have the numbers 0 to 36 on it (or however many numbers there are on a roulette board)

I say the rates should stay the same however much you bet.

Odd/even and colours canboth be worth x2 as it's 50/50

1-18 and 19-36 also x2
1-12, 13-24, 25-36 gives 3x the bet
1-8, 9-16 etc gives 4x
Picking 1-3 etc therefore gives 12x.

Individual numbers give 36x.

Can you make a roulette dice then?

I will soon.