Here are a couple campaign request form templates that were developed to capture all the information needed to build a webinar program in Marketo. I build a lot of these one-off programs and was finding myself spending too much time tracking down information from various people.
The attachments are as follows:
Campaign Request Form - External
Campaign Request Form - Internal
The additional campaign tabs are added to the external request form once received by the marketing team.
We also use a Google form for some project requests. That may be an option too!