I'm throwing in my pennyworth, having looked at enfleurage for myself with only moderate results to date.
I have tried it with slightly warmed oil for the flowers whose petals don't last long enough for cold enfleurage. The fat needs filtering every charge and 10 - 20 immersions was suggested. Mine was very delicate and only just smelled of something using wild violet petals, then I ran out of petals. I then charged my weak oil with more essential oils and used it for bath oil.
For smaller volumes of flowers, I had been wondering if one should try putting the layer of fat around a wide necked jar, open enough to get your fist inside, so that the headspace is contained in a small space as well as the petal contact. Without many flowers, one may not get enough recharges to make a strong enough pomade. A rich pomade requires about 36 charges from what I understand of it, but containing the headspace alongside the fat in a closed jar may work in the same way that the top of a chassis performs.
Some points I noted were:- it is vital the petals are dry as moisture will turn the fat. The other is to take the petals out the second they have begun to whither because the odour will change for the worst and to remove every remaining bit with tweezers. Another thing was to roughen or comb the surface of the fat to increase the absorption area.
Approx maths.. some suggested proportions. Each measurement of fat to have been in contact with about 2.5 - 3 times its weight in flowers (in the case of jasmine) during the enfleurage period. Apparently this varies with the flower used. The jasmine I was reading about was changed every 24 hours, then the top chassis moved to the bottom and charged. The whole process taking about 70 days. I suppose that must have meant they recharged each side of the chassis 35 times. Needless to say I haven't done this one yet.
@Chris. I have seen a stargazer lily scent selling online that uses Organic palm oil as the fat.