LINCOLN, Neb. (AP) — Two Nebraska Wesleyan University students have won a competition for their stir sticks that detect the presence of date-rape drugs in drinks.

Gwen Plouzek and Stacie Skaff recently beat out eight other college teams from Nebraska, South Carolina and Estonia to win this year’s Network Globally, Act Locally competition. Along with the bragging rights comes $3,000 to use toward further development of their startup company, SipSafe.

The company produces stir sticks that, when swirled in a drink, change color if they detect the presence of ketamine, Rohypnol or GHB.

Plouzek says she came up with the idea while talking with her mom about the need for a reliable, discreet test for those drugs, which can be slipped into an unsuspecting person’s drink.