Removable caps to make laser into kaleidoscope?

[frostedfires]

I recently bought a 50mW Purple Blue Laser Presentation Pointer from Amazon and would like to also purchase some cool end caps that will make it act like a kaleidoscope and also one that helps focus the beam better. I heard that there are better "lens" that you can buy to help them focus better. Mine works great how it is but would like some removable end caps such as these: Amazon.com: 10mW Blue Violet Laser Pointer w/ Star Lens: Electronics

Here is the laser pointer I bought: Amazon.com: 50mW Purple Blue Laser Presentation Pointer: Electronics

Thanks