Poker tournament with severely limited chips. Help needed

[Jaswarbrick]

Hi everyone. I have a set of poker chips that i take to college every day to play with which consists of the following:

25 x green chips
25 x red chips
25 x white chips
25 x blue chips

Basically we try and play a small tournament each lunch time (about 5 of us altogether usually), and i would like to know how to best distribute these severely limited number of chips between five people.

At the moment it's basically just people changing chips because they run out of greens or reds. I know that there isn't alot that can be done, and i can see why each player can only have a maximum of 5 chips of a certain colour given there is 5 players, but what chip values would you recommend.

At the moment we use this:

5 x 5 (green)
5 x 10 (red)
5 x 25 (white)
3 x 100 (blue)

and use this blind schedule:

5/10
10/20
25/50

After 25/50 it becomes basically a crapshoot and was wondering if a change could be recommended.

Thank you, and i know it's difficult!