Icon appears when item enters collider

So im trying to make a potion game in third person.
You drop 3 objects into the cauldron and it changes into a potion.
What i want however is that when you drop one object in an icon of that object appears above the cauldron.
How do i script this?? im a noob when it comes to scripting..
Thnx!

 

You could probably get some ideas from an inventory system tutorial on youtube. what you're describing is technically a little tiny "inventory" floating above the cauldron and you're putting things into it, so it would need an icon just like a regular inventory does.

 

Oh that’s smart! I’ll check that out thnx!