Create A Birthday Cardconvertible Car I Need To Create A "Birthday Reminder" Poster...?

I need to create a "Birthday Reminder" poster...? - create a birthday cardconvertible car

I want to frame on the computer or on a large poster to create and hang on the wall ... I would like a room for a month and maybe a background or a theme for each month and every month I have all my friends and family birthdays list. This is a gift for my "forgetting" sister. Suggestions? I Should my account? Or do you know anywhere online or something, the information that you can make? If I have to have an idea of what to use computer programs? Please help! Thank you!