I am your knight in shining armor!! There is a place that sells them by the case.
Only problem is they are not frosted, they are clear, but if you use dimmers it wont be a problem.
Okay, found a local electric store, got a R20 100 watt reflector for $1.90! WOW! I couldn't believe how cheap it was! So far, 2 out of the three run terrific. I'll be testing the last one tomorrow... but here's a pic of today's Custom Lime/Yellow & the bulb box. If folks are interested in buying bulbs from me, just give me a yell & I'll figure up packaging & shipping for you.
I found some locally at a pool and spa store. That buld is commonly still used for that application, but it has a slightly shoter neck than the one that is specified for the grandes. I recall the store called it something else, so take your bulb with to match it up. With the shorter neck the catch is you then have to make adjustments.... I put in my new shorter necked bulbs, and one of my grandes runs just fine as is. One still did not get hot enough to flow right so I added a socket extender (CATION WITH THIS!) For that lamp it was fine, perfect solution, but for some it brings the bulb too close to the glass and could break/ burn your lamp. If neither of these work then you have to adjust the height of the socket in the base of the lamp through the bottom. good luck