My epoxy tools of choice are in the pic. I use a cup in a cup, pre-marking the outside cup measuring water into the inside cup. I do the pre-meausring and marking in the kitchen with water using measuring spoons or shot glasses making two or three different sets of stacker pairs of lines of different total volumes on the outside cup. Also I pre-mark Monoject syringes and fill them with the generic mustard/catsup squeeze bottles. It is also easy to make your own foam brushes with the extra weatherstripping from making your hatches. Popsicle sticks and tongue depressors are great for mixing epoxy and making fillets. It is handy to cut one end off square ands and a chisel tip for cleanup of epoxy smears.