Up to a point! I have very restricted options in my range of hidden insert dice (loaded, magnetic, floats, etc). So if you want a different size of loaded, magnetic, float, overloaded, iron core, etc, I can’t help. See the FAQs on different size and colour for an explanation.
However I may be able to make mis-spotted dice to your requirements. I use a precision jig system on a milling machine to create pip indents exactly where needed. There is a limit on how many pips I can position on a side. It depends on dice size, incent diameter, and other factors. Please contact me to discuss details.