When I first did this mod, I used washer nozzles from a Volvo V70. I chose them because I own a V70 and loved the way they spray. I was able to get them to fit in the hood after some dremel work and a few washers.
Later on, I was walking through the parking lot at work and noticed that late model camry's had the fluidic nozzles, so I looked them up on the EPC and ordered some. I was not sure they would fit, but in fact they were drop-in replacement since, as we now know, Toyota standardized their nozzles from 89 on. However, the Camry nozzles are not as good as the Volvo V70 ones. The spray has a narrower angle and less volume, but they still work well.
I believe I have a V70 nozzle kicking around somewhere in the garage, so if anyone wants to try it on an 87-88 hood send me a PM and I'll try to find it.