Tie bars, clips and tacks... what's the difference?
Their names make them rather obvious, but nevertheless, they are not all equal in the world of neat presentation.
Bars are by far the most versatile as they slide onto any tie and shirt, and produces the least amount of wear on your articles. Tacks often are the most fun way of pinning your tie, as they come in the most unique designs, but are only best for wool knit and linen fabrics. Never use a tack on silk ties, as the pin will bore a permanent hole and will inevitably lead to a run. Lastly, clips are not recommended, as many have teeth which leaves marks and causes runs in the fibers of most fabrics.
This Building Block Tie Tack found on Perpetual Kid is perfect. Imagine all the glances you'd get and people thinking "what a confident gentleman to not only have a tie tack, but it be something so un-ironically playful."