.. Allergy potion - a touch of space dust

You mean how Justin can go to space? He would need to shoot himself high enough.

As soon as you get to the mountain top you find one way to shoot up.

There is a tree stump that looks like a slingshot.

.. shoot Justin into the space. Exactly!

You need the sling. Justin will find some slinking stuff that can be used when exploring places.

Break into the hunting lodge. ( Search through the red bowls under the table. )

Use the intestines ( Actually, you should use the stinkosaurus intestines ) on the slingshot tree.

Off you go!

Did Justin just launch into space without any means of getting back?

You should use the other intestines, also ( Use the slinkosaurus intestines on the next tree stump. )

Fix the space suit.

Now you should succeed with the space flight.

Oh, you need one more item. A bigger hand!

Now you should have everything to grab some space dust.