Final answer:
Xavier University selected its informal mascot, 'The Blue Blob,' from a student's drawing. This mascot is used to entertain and energize at many school events alongside their traditional mascot.
Step-by-step explanation:
The college that chose its mascot from a student's drawing of a blob is Xavier University. This unique circumstance occurred when a student's rendition of a blob was selected as the official mascot, and thus, 'The Blue Blob' became the informal mascot of the university, in addition to the more traditional 'D'Artagnan' musketeer character. Notably, the Blue Blob serves as a mascot that helps energize fans and students at various athletic and school-sponsored events.