Singapore Costume Shops
 NO. 1 COSTUME COSTUME
Jln Lembah Kallang
TEL:  6333 9440
FAX :  6325 4736
No 1 Costume Costume is the biggest costumes showroom in Singapore. With more than 20,000 costumes and accessories, you will definitely be spoilt for choice. Let our friendly costume consultants assist you with all you needs and desires.
They offer the following products & services :-
Rental and purchase of the following kinds of costumes and accessories: Thematic; Movie; Christmas; Drama; International; and Retro, Custom-made of Costumes and Production of Mascots. Designs Costume Booths; Cosplays.
Business Hours Details
Mon to Fri: 10.30am - 8.00pm
Sat: 10.00am - 5.00pm
Sun: 12.00pm - 5.00pm
Public Holidays - Closed
They are the Largest and Best Costumes Shop in Singapore. From my own personal experiences, thought they are busy at times, their customer service is very good and the friendly staff will try to cater to your needs if you are seriously interested in renting or buying items. New costumes can be made according to need and its future usage and will be slightly higher than their standard rental price.
As for Tailoring, their pricetag is fixed for most type of costumes and ranges around SGD400. But if you bring your own Materials and Design, the price will be adjust accordingly. Their Tailored Costume (aka the ones you own) tend to be as accurate as the resources you provide them; I am very happy with the LOTR The Two Towers Elven Archer Vest as it was 95% like the original photo of the original item I gave them.
Their Store is right beside their Rental Area and have a very good selection of general costuming and halloween items. Prices can ranges from being higher than outside (Eg: Temporary Hair Spray) to reasonable.
 COSTUMES & MASCOTS
North Bridge Road
TEL:  6297 0778
The owner is kinda temperment and how she serve you will depend on her mood. @__@ Unless you personally come down to her shop to check out your Tailored Costume or give a deadline (not too long tho'!), there is a risky of your costumes may not be done in time. =__= They also tend to use their own creativity to create certain parts of your costume if you don't provide sufficient resources or materials and explaination so be warn that your costume may not turn out accurate.
Their prices are lower than other costume shops tho' hence most cosplayers will commission them to do their costume.
7500A Beach Road
#02-308 The Plaza
TEL:  62992252
They only do Commission/Tailoring work currently.
 MASCOTS AND PUPPETS SPECIALISTS
Lorong Bakar Batu,
#07-05 Macpherson Industrial Complex
TEL:  6297 0778
The New Kid on the Block.
Being new, their ranges of Costumes are limited and from what they have displayed at their shop, tend to be the Historical and Mascots kinds. They also sell a selection of Wigs and Trimmings, other than provide services for Puppets.
 MASQUERADE 2000
26A Bali Lane
TEL:  6292 4889
The last I checked, they do not do any costumes that have Copyright such as Star Wars, Lord Of The Rings. Their rental costumes and items tend to be on the general and local taste side.
TEL:  6281 9578
The last I check when there were near Little India, their range of costume are either Halloween Qualities or those they made themselves based on Commercial Halloween Costumes Design.
Yet to check them out at their new location.
 HOUSZ OF COSTUMEZ
1 Sophia Rd
Peace Centre #02-03
TEL:  6334 3359
Another possible New Kid On The Block but I'm yet to check them out.
 STAGE IMAGE
772 North Bridge Rd
TEL:  6299 2077
They cater mostly to Dance and Drama Company but can do costumes too. They tend to be busy most of the time wiith orders from Schools, Dance Company etc so give at least 2 months to get your costume done
Will add infos on how to get to the Costumes Shops another time and update my comments about them after I personally visit the shops. Maybe will also add in more address as Yellowpages (SEARCH UNDER : Costumes-Masquerade & Theatrical) gave me more links than I expected so need to check out the rest first. -__^