They'd be tied really tight with the ties.
Apart from tomorrow eve I really don't know when I'm going to have time to make 45 cones before the party.
I'm thinking it should be OK. No different to a shop /small Business having some pre made or a child receiving one but not eating for a week or 2?
If it would be a disaster then I don't know what to do short of putting dc extra in pre school one day as every evening we have stiff going on and every day up to the party.