Yeah, does anyone remember that awfully small and only semi-functional soap-dish I designed? Me neither, however this version includes all the new features you desire, such as:

• a larger base, so it might actually fit your large soap bar
• bigger drainage channels, so now it might acutally keep your soap somewhat dry so it doesn't get all soft and disgusting on the underside
• yeah that's it

If you are still not satisfied, try your luck with the Inventor file or sth, just make sure to share it to the masses of people to lazy to by an actual soap dish but somehow not lazy enough to not have a 3D-Printer