Jig or Advise ie: bandsaw sheep horn scale holding

[etexas]

Most sheep horn scales usually need re-sizing and also keep perfectly flat. Since they are not perfectly flat on the outside, this causes a problem of shimming on the ends to offset the roundness. I am currently using a crud method of double sided tape up against a push stick thru a band saw. I would like a more accurate firm grip on both ends, but still be able to reduce the scales from say 1/2" to 7/16" and be able to push thru bandsaw. Any suggestion?

 

[Bolstermanic]

Are you able to get the scales in a Jorgensen-type of adjustable bar clamp and use the clamp as your handle to push the scales? Maybe 1/2 is too thin for the clamp trick, but give it a try. I have been milling my scales with my hobby mill and a mill vise, which allows very precise removal of material, but ... do you have a mill? You might be able to "mill" relatively soft material with a drill press and a drill press vice, but side loads on drill presses wear them out, so I'd not do it frequently.

 

[Horsewright]

I sand from the inside on a flat disc. Sheephorn scales can also be found in much thinner sets than 1/2"

These were a little over 1/4":

I put liners under sheephorn scales. Sometimes as the horn is polished it will go translucent.

 

[etexas]

Some kind of adjustable clamp will be required no matter what you use to trim. Difficult to sand off example 1/16th-1/8th" and keep uniformly flat on say on 1.5 x 5" scale. The smaller sized scales is not so bad. Right now I mount on a push stick with double sided tape then that is guided up against a fence on bandsaw. It works, but tricky to get setup vertical and firm against push stick. I can and do mill with dremel router attachment, but still need to hold firmly.