[Slakah]

local framepool = {}
 
local function removeframe(f)
    f:Hide()
    tinsert(framepool, f)
end
 
local function getframe()
    local f = tremove(framepool)
    if not f then
        --Create your frame here and assign it to f
    else
        --revert any unique changes you may have made to the frame before sticking it in the framepool
    end
    return f
end

Something like that as a very basic example