Logo and business card design

Hi Guys!
I am starting my own business, that already has it's own logo and identity. But now I need to create a logo (same theme as the one I already have) but for a sub-business. I will provide you with colours and the original image of my current logo, and will be waiting for your fresh ideas :)
Briefly about the business, I am currently selling aircraft models online and new logo will be required for an online shop that sells aviation items in general, aircraft models, aviation gifts, travel accessories, flying experiences, etc...
Looking forward to hear from you, all ideas are welcome.
Regards,

Olga
HR Manager ;)

P.S. As a starting business I am very low on the budget tho...