Repurpose wooden boxes for great sounding custom boom boxes. Make sure the cavity is large enough to fit your drivers, especially if woofers are needed. Wineboxes are ideal for 2.1 channel setups as they easily accommodate smaller woofers and two full range drivers. As shown below, the amp is placed outside the enclosure for ventilation and future upgrade options.
Custom designed and 3D printed speaker grill and knobs.