in uk there are some earrings available that have a back that just flicks down once you've put them in, dont know if theyre available in other countries or not, argos used to sell them but not in the new catalogue if i remember the make i'll post it on here.
also there are these type on usa ebay with french back they push through then clip flips up
Item number: 180337317596or there are lever backs as in attatched photo
Click to view attachment(you should be able to find these type of backs by putting leverback earrings into your search engine, hope this helps
just remember the name of those earrings theyre called Androlock earrings, mostly stud type earrings with a bar that flips up instead of a butterfly, but not sure where you can buy them from