Seams?

We need more details in order to be able to help you. What kind of costumes are you making? For what purpose (theater, cabaret, re-enactment, costume party)? What kind of fabric will you be using? Patterned or plain?

For instance, some people are experts at invisible zippers for special occasion dresses, but I personally wouldn't touch them for stage use.

If you get back to us with more info, someone on here is sure to be able to help.

Olwyn Mary in New Orleans.

Hiding zips is easy - you put a concealed one in a seam and hide the tag in one of several places depending on the seam position. However, zips in anything other than the lightest costume for the lightest use is anathema to costume makers. Especially don't put them in anything fitted!

Hiding seams is possible if the pattern on the fabric is the right sort: it takes painstaking work with pattern and pile matching.

I'm with you there! Ballet tutus have hooks and eyes for good reason.

Indeed. More details will result in better advice.

Well, I am planing on having some private use costumes using mainly matterial that has hair or fur. This is being made for someone special order, and I am not quite sure how to fit their needs.

Zips won't show in fur fabric if put in carefully. Nor will seams, so long as you don't catch the pile too much, and brush it over the seamlines.

You can probably use ordinary heavy duty coil zips or plastic teeth zips in a matching colour. You don't want to put a concealed zip in fur fabric as the pile will be too close for the zip to operate properly.

\--- Lap the garment fabric over the zip--sort of folding the fabric back on itself. Think of a hidden placket. Ready-made costumes can be adapted like this: if the skirt is gathered, (as many are), just let some of the fullness out, fold it back on itself, and you've thus hidden the zip. Plackets are another option. If you can 'steal' fabric from the hem, or excess gathers, you can create a placket or pocket bag to hide the zip insertion. Cea