Could you get an egg drop with these qualifications to work?

Ok, so this year I am in AP Physics and we’ve been given an egg-drop assignment, although its not the typical egg-drop…

First off, the bare minimum possible to get a 60% (or a D) is as follows
15cm x 15cm x 15cm (chute open included)
< 50 grams
biodegradable materials
1 egg

An A+
15cm x 15cm x 15cm (chute open included)
< 10 grams
biodegradable materials
2 eggs

An A++
15cm x 15cm x 15cm (chute open included)
< 10 grams
biodegradable materials
3 eggs

If the egg doesn’t survive the highest grade that can be attained is a 50%. If the student wishes to retest the egg it must be done with in an hour with a new rebuilt egg-ship.

It sounds easy until one discovers how light 10 grams really is, keeps the biodegradable constraint in mind, and remembers the parachute must remain in the volume constraints even when open.

What would be your solution? All of mine are too heavy so far to get a decent grade…