Credits to: @WhoAmI for making the original guide.
The Link to his guide is here: How to Make your own in-game trail
I thought that I would make a more in depth guide with some more pictures.
You need:
A Zone
A Lifecycle
A Repeater
A Wire Repeater
A Item Granter
A inventory Item Manager
First Place down your zone.
Then set item decay to 5 seconds.
Next Place down your life cycle set it to listen for Game Start.
Then place down your Wire Repeater and wire the Life cycle to the wire repeater.
Now it’s time to place your Repeater. Wire the Wire Repeater to the life cycle then back to the Wire Repeater.
Set the Repeater to, Task Interval: O.5 and Stop Strategy: After receiving on a channel.
Now it is Time to choose your Trail! Choose an item for it to be and put down your item granter with that item. (For Me it Is Banana) Then Wire the Wire Repeater to it.