Select a t-shirt you are willing to cut up! I chose this men's large Beastie Boys shirt because it is too big.
Chop off the neck, sleeves, and bottom.
If you want thinner straps or a lower neck then keep trimming!
Cut a V down the back of you tee.
Cut the bottom on a diagonal for a high-low tank top.
Using the excess fabric from the bottom of your shirt, gather the straps and tie a knot.
Wind the fabric around the gathered straps to your desired length then double back and finish where you started so this is reinforced. Tie another knot and trim loose ends.
Voila! New and improved tank top.
Great for a bathing suit cover or to be worn over a tighter tank/bandeau :)