1) Fit a VOR in your aircraft - probably more expensive option than;
2) Hire another aircraft with a VOR in it or;
3) Find someone who has a VOR in their aircraft and trade hours on your machine so you can use it for you CPL(H) LST - make sure the insurance is all tickety boo though!
4) It doesn't have to be a VOR - you can do it with an ADF which may or may not give you more options.
What aircraft type do you own?