Corporate Logo needed

We need a Corporate Logo for a new company Rainbow Toner. We sell Bulk Toner and cartridges for Laser Printers. We want 6-10 initial samples or variations to choose from and will need revisions until we are satisfied. The caption "Pure Gold" may be incorporated into the design. We will need the final work in major vector formats. Bids with samples will be highly considered. We will have ongoing works