Can you tailor a course?
Yes of course. A couple of examples are presented below.
The Senckenberg Society for Nature Research (Frankfurt, Germany) asked us to teach a course for 25 students on spatial-temporal data analysis using their data. That was all about plants and biodiversity. Two years later, we did a second course for them; it was a combination of two courses (linear regression models and linear mixed-effects models).
In 2017 Wageningen Marine Research in The Netherlands asked us to run an R-INLA workshop for 12 invited scientists from 5 countries. We showed them how to analyse their bird data (Guillemots) sampled around windfarms and provided R code. The techniques we discussed were zero-inflated Poisson and Poisson GLMs with spatial-temporal correlation using R-INLA. The participants then analysed their own windfarm data under our guidance.
In 2009 we ran a course for 14 forensic entomologists at the Institute of Forensic Medicine in Frankfurt, Germany. CSI viewers will know that these folks have quite interesting data sets; but rather different from what you will find in general statistical textbooks. The course organizer gave us a couple of data sets that we used as exercise data during the course. Forensic entomology is a scientific field in which you definitely don't want to become part of your own data!