Help fund my mother’s and my trip to Graduation

It was always a dream of mine to go to medical school, but I wasn’t able to do it near home and I had to leave to another country for 4 years in order to make it come true.  I finally completed my courses and now I have graduation coming up in July, but no money to pay for neither my mother’s nor my trip, so that I can finally get that diploma.  She talks about it all the time and I can't find words to tell her that we probably won't be able to go.  She lost her job a few months ago and I know she doesn't have the resources to cover the expenses of this trip.  I tried saving money but being away from home I had a lot of expenses of my own and now have to pay for my boards and also have plenty of school loans to start paying soon.  The money will be used for 2 roundtrip tickets, hotel accomodations, and transportation.  I usually don’t resort on this kind of things, so I wouldn’t be here if I really didn’t need the money.  But I know that going to my graduation is very important to my mother, and I would like for her to be there and be part of it.  So, any help that can be provided will be greatly appreciate it.  God bless!!