Since Easter is only a few days away, I'd say its way too late for them now.
If a buyer purchased something today from you and you ship within 3 days, that means that it might not even get to the post until Saturday. Allowing a week for delivery within the USA, it wouldn't arrive to the buyer until sometime late next week.
I don't list a lot of 'date specific' items, but right now I'm doing my planning and ordering of supplies for fall and Christmas.
When I'm listing seasonal items, I try to list at least 4 months in advance. Most of my Christmas items are sold between September and October and then sales die off until July.