I need Minecraft trap ideas

[Petzbreeder]

I'm working on a Minecraft book of traps, some of my traps are a bit simple and obvious though. I need ideas for making traps with these mods for 1.7.10. The Forge installer is included.

You can apparently send files directly to my Dropbox account without one of your own. Videos of how the traps work would be useful to me.

The traps I've come up with so far are:
A room with turrets (Utility Mobs) on an Ice/Soul Sand floor.
A disappearing bridge (ToggleBlocks) with an invisible Pressure Plate (InvisiBlocks) in the middle of it and a lava pool underneath.
A gravity trap (Gravity Science) with Diamond Spikes (Extra Utilities) around it which are enchanted with Sharpness X (SuperEnchants).
An Insta-kill trap made with a Lens type:STAR Shock Panel (Expanded Redstone) and a pressure plate above it.

I'll make videos showing you how these traps work tomorrow. I'm a bit too tired to do anything for now.