Update 21

Added mouse jiggler
Added Pelican case
Added Hard case

README.md

@@ -32,6 +32,7 @@
 - [`Spectrum analyzer` Sub-GHz frequency spectrum analyzer.](https://github.com/jolcese/flipperzero-firmware/tree/spectrum/applications/spectrum_analyzer)
 - [`Tetris` A rudimentary Tetris game.](https://github.com/jeffplang/flipperzero-firmware/tree/tetris_game/applications/tetris_game)
 - [`Flappy Bird` The name says it all.](https://github.com/DroomOne/flipperzero-firmware/tree/dev/applications%2Fflappy_bird)
+- [`Mouse jiggler` Keeps PC screens on by acting as a moving mouse.](https://github.com/MuddledBox/flipperzero-firmware/tree/Mouse_Jiggler/applications/mouse_jiggler)
 - [`floopper-bloopper` LD#47 Game.](https://github.com/glitchcore/floopper-bloopper)
 
 ## Firmwares & Tweaks
@@ -50,6 +51,8 @@
 - [`FlipperZero-Hardware` 3D-Printable cases with custom iButton interface.](https://github.com/s0ko1ex/FlipperZero-Hardware)
 - [`Flipper Zero Cases` 3D-Printable case & cover models.](https://github.com/MuddledBox/FlipperZeroCases)
 - [`FlipperZero-Protoboards-Kicad` KiCad prototype boards.](https://github.com/lomalkin/flipperzero-protoboards-kicad)
+- [`Pelican case` Big case to hold Flipper and USB.](https://www.printables.com/model/204882-flipper-zero-case)
+- [`Hard case` Smaller than pelican case, but still bulky.](https://www.thingiverse.com/thing:5387015)
 
 ## Off-device & Debugging
 - [`OOK to .sub` Python script to generate Flipper RAW .sub files from OOK bitstreams.](https://gist.github.com/jinschoi/f39dbd82e4e3d99d32ab6a9b8dfc2f55)