Back in my store front theater days, I had I think 4x PAR 46 Halo track light wash fixtures which I converted to C-Clamp. Used them like all the time. 9'1" ceiling... small fixture and were just as useful as Inkie's. PAR 46 can is still in the inventory at work - as said, was used at least once this year. Still active inventory, not used much but not sold off or scrapped.
Use of a fixture... I know of local high schools with strip lights less functional than they were 70 years ago when installed. See the brackets on the walls were other lights once were, see Poylurethaned over stage hatches where booms once were. All that's left is what is left of the strip lights, or in one case some 1950's PC fixtures still over the gym - doubted if working. That's in many schools, JHS... I had a full rigged thater space with period say pre-1982 lighting for it. Some of my local theater's have at worst I have seen, just the strip lights... or as one of my assistants showed me last week, they have 6" Fresnels, and Colortran MiniEllipses in use. Depends on where, and in his case... The Fresnels are fine once serviced - Always. Resurface or replace lamp socket and will always in my opinion have a viable use. Such Fresnels being on as it were the Second Electic... You have Fresnels plenty not used that can be. You have a second electric...?
The Colortran MiniEllipse, green lenses, less than optimal lamp, but other than that... changable lens focus if you move the fixtures about in design. Probably not the most efficient fixture for a JHS/Grade school combination where you have a static design mostly. On the other hand, while despising the fixture, back to my store front theater... couldn't afford better back in say 92' and were constantly using between theaters and positions/focal lengths. Other than the green lenses and crappy lamps... will have been an ideal fixture for us.
The PAR 46 fixtures were very useful in the main stage of the theater... still main ceiling of 9'-1" but with an over the stage bump up to 14' Didn't have enough lights or throw to blend and cover all areas... PAR 46 MFL fixtures were very useful to add to a coverage of between what otherwise could be lit.
Spent many years running up my after college credit card for making work a store front theater. Made some magic with what I had or could get, Good education in low budget ligthing. At least we didn't resort to clip lights, other stages did at times. PAR 46 lighting fixture, if part of the inventory of lights I had available in my pallet of brushes to use so as to paint light on a scene... I would certainly respect what that fixture/lamp does and use it to the best I can in making art.... Oh' what... I did in part make art with them.
Museum wise... think the Halo PAR 46, PAR 56 track lights I have not gotten back yet. Know if still existing where both still exist if they still do, and the Colortran MiniEllipse - know where those are at if they also still exist. None in collection. PAR 56 wash mentioned in the past I parked it center in the audience so as to make one actor's attempts to hide from his light go away. Was like a 14' wide room.... when he tried to hide.. could still find him with it's usage. 9'-1" ceiling x 14' wide stage.... park a 300w PAR 56 wide in the audience... where are you going given you are speaking lines to others upstage of you?
Paint brushes, this especially when in a really small room and not money or what you would wish for gear to light with. When "My Kindom for Another Leko" is not going to pan out..., respect and learn what you have available.
Back in that day at the old store front theater.... was trying to figure out who was hot glueing the PAR 38 lamps into our stubby PAR's. Turns out we had a lot of PinSpot cans which someone had converted to PAR 38 by way of plastic lamp sockets. Was not hot melt glue, glueing the lamps to the cans, it was literally the lamp bases themselves melting down and in lamps pointed mostly down, the plastic of the lamp socket/base melting down with gravity and glueing lamp to fixture. That's how bad it was back in the day... that plus the lamp sockets were only attached by one screw to mounting base.... so at some point that screw became loose and un-screw all you wanted... was not coming out until the wire stopped twisting in getting the lamp out at best. This a light of my elders to the theater. Say a half stip less or more, they were "Pro's" in the early 90's for store front theater... above the clip light folks.