Can't we asked Anna to make one rack (one row will do for this purpose) full with only VCAs and we and Anna should keep that secret from JakoJako. Then when he "surprises" her with the no longer secret rack, she counter-surprises him with a rack full of VCAs and tells him:
"Well you know darling what they say on ModularGrid, you never can have enough VCAs!" :-)
For review reports of Eurorack modules, please refer to https://garfieldmodular.net/ for PDF formatted downloads