Congratulations to your 3 years and amazing menstrual cups. I have had one for three years and now I bought a new one for myself and donated the other during the double campaign. Great initiative with the possibility to donate, I wish that all women in the world get a chance to discover the freedom it gives to use a cup.
A small revolution is what the menstrual cup is. No purchases, no smell. Freedom to just be for a whole day, no waste, always available, no chafing, no itching. Simply the best!
Best protection for one who works in white clothes all day, never had a single problem and soon my whole department will buy one (I work at a hospital) each!