Design swag for OLS

[NPDebs]

My darling @doaamkader and @jilaga, I am opening this issue to help us track our progress in the swag creation procress. Please add anything I may have missed, or new ideas that come to you.

• Brainstorm ideas
• Create survey to guage interest of community members.
• Send out survey in community slack.
• Analyse responses.
• Create mockup based on feedback from survey -> doc here.
• Collate projected expenses in budget spreadsheet.
• Present final designs to the core team.
• Set up online store.