Drummers are used to the idea of performing semiquavers with varying amounts of swing.
Brass players spend loads of effort perfecting even double-tonguing for performing extended semiquaver passages. Double tonguing is often used to play 16th notes when the quarter-note tick is 120 bpm or faster.
Is it possible to swing double-tonguing on a brass instrument, so the 't' and 'k' notes are different lengths? I've tried to do this and I found it next to impossible, which doesn't mean that someone really good couldn't do it with ease. But I've never come across a recorded performance that uses this technique, or been given sheet music that requires it.
Is this because the technique is too hard? Or is it not a musically useful technique?