Yeah, definitely. You can also get diaper-compatible Velcro straps from fabric stores as well as home improvement stores like The Home Depot and Lowes. Velcro "One-Wrap", for instance, comes in rolls of varying width and you cut it to length. The stuff sold at Home Depot is usually black in color. Fabric stores usually have white, and I've even seen it with pink hearts and other patterns. It works great.
But again, there are loads of ways to do it. I tend to prefer reusable extenders, mainly because, once you've made them, you get to enjoy dozens of totally effortless diaperings before you have to get out the scissors, tape, staples, etc. again.