Today is Lag B'Omer, a festive day amidst a mourning period on the Jewish calender, so why not make some index card sized drawings or paintings to celebrate?
It is true, these illustrations are a part of a larger project that I'm calling "Daily Object" though they are currently in display in my kitchen for the holiday, and as I start cooking for shabbat I'll enjoy their colorful representation of the day! Your version might be as simple as drawings with a black pen on color paper, and that is great too, the main thing is to just make time for creativity!
While I don't have time to go into the symbolism for the items I've depicted here, briefly, Lag B'Omer is a celebration of the great sage Rebbi Shimon Bar Yochai, who hid from the Romans in a cave and was blessed with a carob tree that grew near the entrance. Today 3 year old boys get haircuts and put on their first tzit tzit, bon fires are lit to symbolize the light of Rebbi Shimon, and the bow and arrow is a traditional toy for the day. So many wonderful things to think about, enjoy!