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Nice job.
I believe you can give your lens holder to your optometrist. They can send that holder away and have a lens cut to that shape and even anti-reflection coated for less than the TV product cost. The lens machines cut the plastic to follow/match the profile of the frames.
I have not tried this. I worked it out years ago but then found that my astigmatism was mild and didn't need correction at the telescope. Mine was caused by an eye accident, many lacerations that changed the lens shape just once so the correction has not changed and remained small enough that I have not needed it at the telescope even with wide exit pupils. The astigmatism has not progressed to stronger corrections over the past 10 years and because of my age, I don't use any eyepieces that result in an exit pupil(EP) wider than 5.5mm. At those EP's, I don't have a problem.
If you have optical health insurance, you probably get two pairs of new glasses every year. Those glasses have the astigmatic correction built in. You could make your own less attractive correctors by using those lenses in a holder.
Joe
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