During the 1990s David began helping to build his wife Patti's business as well. On A Fence Designs and Rentals, is a specialized landscaping service that provides plants and flowers to horse shows and other special events. As this endeavor grew they realized they needed to both be "on the road", which made it difficult to be in both places at the same time. Consequently Dave started looking for a way to further 'customize' his carpentry. Realizing a potential to combine both businesses by catering to the same industry, the Custom Tack Trunk line was launched in 1999.

The line consists of several versions of trunks, from the Trophy Trunk, which has been presented as a trophy at the Lake Placid horse show and the National Finals of the Intercollegiate Horse Show Association, to a simple and very functional, Reserve Trunk, which is sensibly priced for most budgets.

The line also includes tack room accessories such as, saddle and bridle racks, bit boxes/trunks, grooming boxes, bandage boxes, medicine boxes, and flower planter boxes. 

A major concentration of the business philosophy is to ultimately please his clients, hence the emphasis on Custom Carpentry. If there is an idea for a design, with a little discussion that project can become a reality. 

With the launch of a web site in early 2000, David Fowler Custom Made Tack Trunks moved into the next phase of marketing and hopes to increase exposure this way. As always Dave is available for consultations at the horse shows they travel to throughout the season and is open to making 'barn calls' as well.