I'm a UI guy and technical manager working on a subscription billing platform for merchants.
Web merchants - web hosting, gaming, software as a service, and other subscription related web products and services.
We need some generic icon sets to convey different levels of services. For example, a web hosting provider might offer Bronze, Silver, Gold and Platinum services plans. Our software will let them define those plans and select from one of these generic icons to represent each plan defined. Other examples you might consider are:
Business: Starter, Plus, Premium, Max
Stars: 1 star, 2 star, 3 star, 4 star, 5 star
Stones: Ruby, Sapphire, Diamond
Anything else that might convey increasing levels of value.
If we get good designs, we will award more than 1 design. Our goal is to offer a diverse set of fairly generic icons for merchants to choose from.
We'll need a small, med and large versions of each icon: 32x32, 64x64 and 128x128. We aren't looking for boxy clickable operating system style icons, but rather icons that will be used as a background in headers and on product pages to accent and visually enhance the product pages.