Here is a table tennis trophy that I designed for an ongoing TT competition at my work place.
I have added a blank plaque so that you can add your own text to the file if you want to customise it.
With regards to printing the main part of the trophy, it doesn't need any supports and to achieve the best results (in my opinion) I suggest a colour swap at the top of the trophy base (black section). If you are not comfortable with the colour swap you could slice the parts separately and glue them together.
In order to achieve the text and border on plaque I did another colour swap once the background was printed.
Good luck with the print and more importantly good luck with the Table Tennis matches!