Just send what you have for them that works for this event. Let him know it's all you have right now and if they need something else he can go and get it because the kids will appreciate it. Let him know that doing this is for the kids and not about you and him. This is where you find yourself in life right now....................NOT the rest of your life just simply right now. What happens in the future if this is all just a memory of doing the best you can with what you have..............a memory of a job well done I'd say.