Icon Designs for Landing Page

Hi. I need 2 eye catching, meaninful icons to go on a landing page. I want to float them to the right of the first paragraph in each of the two columns.

I don't really have anything in mind, but do need them to relate to the topics (trade shows, virtual events) and look extremely professional.

Samples of work, or mockups welcomed. I do not envision this taking an experienced designer more than 2 hours.

oh... and I will almost certainly need similar things doing on other pages as well as one more for this page (webcasting icon).

Many thanks