Here is what I can up with for this year.
KIDS- Boys from 3rd grade to high school (Would work for girls too)
Bath & Body Works Hand Sanitizer
Full Size Candy Bars- I just wrote the kind of candy on a colored index card and they can trade it in after the hunt.
Peanuts
Fruit Snacks
Goldfish
Nips- Last year when I was looking for big eggs, I found really expensive ones on Amazon which just wasn't worth it. But this year, I found these large eggs at the Dollar Tree. Once you take off the plastic and remove the lollipop rings, you have a large empty egg big enough to fit certain sized nips: Crown Royal Apple, Fireball (I needed to tape this one), Cointreau, & Ryan's Irish Cream.
Condoms (flavored, because might as well lol)
Full Size Candy Bars (same as the kids above)
I got the candy bars from the Dollar Tree, but you could get them in a large pack from a wholesaler club like Adams, BJs, or Costco.
Teacher Egg Ideas: You could use the candy bar method for an in class party, or for an in class study game. Put questions in the eggs and have students find the eggs. Then they gave to answer the questions in the eggs. You could also infuse UNO into the mix and add "skip" & "give away" to make it a little more engaging.
I hope these ideas help you entertain a more mature crowd this Easter! Leave ideas in the comments!