You have a lot going on with the Big Bang. You are the Supreme Organizer and you have 25,000 words to write. To add to it with 250 Icons and have a real life is not possible. You are only one super-stellar being!
Put the 250 Icons on the back burner. Let them slowly simmer until August 15. Then after the Big Bang, re-examine the idea.
Do not look back at the 250 Icons. Just keep stepping back. Don't touch. Distract yourself with something shiny...