I'll upload some of my flowgraph projects here.
All these flowgraphs are completely free to use/modify/do whatever with, but please credit me when you do use them 
So, let's get to business (I may upload pictures later on)
1) Ballistic cannon systemFeatures:
-Use R to set the cannon target, T to fire the cannon.
-Demonstrates artillery (ballistics) effects in 2 different ways: using an Iterator to set positions AND using an ActionImpulse to launch the projectile in the correct angle.
-> The projectile itself is not precisely accurate due to air resistance. The iterator method should be used for precise (dynamic) bombing.
-Moderately commented, should be easy to use.
-Fires only to a position at the same height.
Download link:
http://www.mediafire.com/?fpe404h4eb47s172) Combination lock system-Checks whether user has inputed certain data in the correct order (a password system)
-Supports (easily) combinations of 8 actions, can be extended beyond that.
-Can be used with ProximityTriggers (in the file), InputKey, basically anything (hard to explain, ask

)
Download link:
http://www.mediafire.com/?9fxlhxhfnqksxq83) Nanosuit node alternative-Simply outputs which nanosuit mode is currently in use:
-0 = Default mode
-1 = Cloak mode
-2 = Armor mode
-XML format -> Import straight to your flowgraph!
-Now also detects when you run out of power (Cheers to XaldiN-76)
Download link:
http://www.mediafire.com/?wwucrpxqkuh3wziBasic instructions for loading flowgraphs in .grp format into your level:
1. Open up CE3 and load your level.
2. Go to Modify -> Load Objects.
3. Locate the .grp file you downloaded and load it.
4. The objects should now be found in your level.
Basic instructions for loading flowgraphs in .xml format into your graph:
1. Open up CE3 and load your level.
2. Create a flowgraph or open up the flowgraph you want to add the downloaded graph into.
3. In flowgraph editor, go to File -> Import and locate the .xml file.
4. The flowgraph should now appear somewhere in your graph.
Think you need something special? You can request new flowgraphs! By default all flowgraphs will be uploaded to this thread for the whole community

Be warned though: I only create graphs interesting enough