I headed to my local craft store and picked up my supplies:
18" x 24" canvas: $8.99 (used 40% off coupon)
Foam brushes: $0.20
Painter's tape: $0.00 (already had, $2.99 if purchasing new)
Acrylic sealer (matte): $5.99
To create your own DIY abstract lines wall art, begin by applying the painter's tape to the canvas, including the edges. Then, plan out which color you'd like in each white section of the canvas. I used a light blue for the majority of my canvas, but added a dark blue in certain sections for contrast. Next, apply a coat of paint. Allow to dry and then apply a second coat. Allow to dry and then peel off the painter's tape (leaving you with crisp white lines). Last, apply an acrylic sealer (if needed). Voila!