Congrats, joeyswells
It won't be long until they'll be asking for the truck keys...they grow up so fast. But, in the meantime, just remember: You have a great hunting partner on the way!!!
I got my boys each a large wooden ammo box - the real deal from Remington - to put their geegaws in. They won't let nobody touch them, not even close friends. They also like the hatracks with paintings of animals and such, guns and ammo, and old cabins in the woods. They also like the gun racks with the background scenes on them (They can use them to store BB guns/pistols/ammo.)
And don't forget to give them plenty of knives and a collection cabinet.
Wow - wait - this is a lot of stuff - maybe you can do this all gradually...