Top Hats, so you can see the beam, not the light.

ETC Top Hats are an economical solution to an age old problem. These Top Hats will do the trick just fine at a bargain price.

City Theatrical Stackers™ are a great solution for those with tight storage spaces.
Stackers™ fit Source Four, Source Four PAR, Source Four Jr, Source Four Zoom, Selecon Pacific, Altman Shakespeare, and many others.  Sorry, Stackers™ do not fit Strand SL, or Source Four 14°.