Abstract: An internal support device comprising horizontal and vertical straps and a plurality of mounting devices for positioning and isolating acoustic microphones interior to a percussion instrument. The vertical straps are rubber or similar shock absorbing material, arranged in a rectangular pattern and secured at their ends to a percussion instrument shell using a series of isolating lug attachments. Horizontal straps of similar material span opposing vertical straps to form two H-shaped frames for one or a plurality of microphone stand devices. Embodiments of the stand devices include a flat plane attached between the vertical straps, a modified flat plate with an internal wire harness for suspending a microphone, and a flat plane with microphone arm extensions therefrom. An alternate embodiment of the overall device includes a motorized adjustment means and a conveyor means for positioning and refining a microphone position within the drum interior without entering the drum cavity.

Abstract: A modular grid structure and method of construction for a playground, wherein the position of playground modules is easily established and rearranged within a array of securement locations and in relation to surrounding modules. The grid comprises a permanent or temporary foundation having a plurality of playground module support locations aligned in a grid or array, such that the playground may be constructed by placing the support posts of the module in connection with the foundation support locations. The disclosed support locations comprise embodiments that permanently secure the posts of a playground module using a pin-locking support hole, or alternatively a temporarily support means to movement for a shorter period while allowing swift setup and breakdown of the entire assembly, such as for temporary playgrounds.

Abstract: An internal support device comprising horizontal and vertical straps and a plurality of mounting devices for positioning and isolating acoustic microphones interior to a percussion instrument. The vertical straps are rubber or similar shock absorbing material, arranged in a rectangular pattern and secured at their ends to a percussion instrument shell using a series of isolating lug attachments. Horizontal straps of similar material span opposing vertical straps to form two H-shaped frames for one or a plurality of microphone stand devices. Embodiments of the stand devices include a flat plane attached between the vertical straps, a modified flat plate with an internal wire harness for suspending a microphone, and a flat plane with microphone arm extensions therefrom. An alternate embodiment of the overall device includes a motorized adjustment means and a conveyor means for positioning and refining a microphone position within the drum interior without entering the drum cavity.